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Finding the Fourth Proportional to 8,798,503.60, 13,197,755.40 and 8,160,774.40

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Solution

The fourth proportional to 8,798,503.60, 13,197,755.40 and 8,160,774.40 is: 12,241,161.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798,503.60 : 13,197,755.40 = 8,160,774.40 : x
  2. Step 2: Convert to fraction form
    8,798,503.60/13,197,755.40 = 8,160,774.40/x
  3. Step 3: Cross multiply
    8,798,503.60x = 13,197,755.40 × 8,160,774.40
  4. Step 4: Simplify right side
    8,798,503.60x = 107,703,904,405,781.77
  5. Step 5: Solve for x
    x = 107,703,904,405,781.77/8,798,503.60
  6. Step 6: Final answer
    x = 12,241,161.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.