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Finding the Fourth Proportional to 8,749,697.60, 13,124,546.40 and 7,364,014.40

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Solution

The fourth proportional to 8,749,697.60, 13,124,546.40 and 7,364,014.40 is: 11,046,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749,697.60 : 13,124,546.40 = 7,364,014.40 : x
  2. Step 2: Convert to fraction form
    8,749,697.60/13,124,546.40 = 7,364,014.40/x
  3. Step 3: Cross multiply
    8,749,697.60x = 13,124,546.40 × 7,364,014.40
  4. Step 4: Simplify right side
    8,749,697.60x = 96,649,348,683,068.17
  5. Step 5: Solve for x
    x = 96,649,348,683,068.17/8,749,697.60
  6. Step 6: Final answer
    x = 11,046,021.60

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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.