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Finding the Fourth Proportional to 29,781,613.60, 44,672,420.40 and 12,744,008.80

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Solution

The fourth proportional to 29,781,613.60, 44,672,420.40 and 12,744,008.80 is: 19,116,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,781,613.60 : 44,672,420.40 = 12,744,008.80 : x
  2. Step 2: Convert to fraction form
    29,781,613.60/44,672,420.40 = 12,744,008.80/x
  3. Step 3: Cross multiply
    29,781,613.60x = 44,672,420.40 × 12,744,008.80
  4. Step 4: Simplify right side
    29,781,613.60x = 569,305,718,694,899.50
  5. Step 5: Solve for x
    x = 569,305,718,694,899.50/29,781,613.60
  6. Step 6: Final answer
    x = 19,116,013.20

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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.