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Finding the Fourth Proportional to 45,674.60, 68,503.82 and 12,397.26

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Solution

The fourth proportional to 45,674.60, 68,503.82 and 12,397.26 is: 18,593.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,674.60 : 68,503.82 = 12,397.26 : x
  2. Step 2: Convert to fraction form
    45,674.60/68,503.82 = 12,397.26/x
  3. Step 3: Cross multiply
    45,674.60x = 68,503.82 × 12,397.26
  4. Step 4: Simplify right side
    45,674.60x = 849,259,605.55
  5. Step 5: Solve for x
    x = 849,259,605.55/45,674.60
  6. Step 6: Final answer
    x = 18,593.70

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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.