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Finding the Fourth Proportional to 18,952,751.55, 28,354,327.10 and 14,354,982.48

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Solution

The fourth proportional to 18,952,751.55, 28,354,327.10 and 14,354,982.48 is: 21,475,819.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,952,751.55 : 28,354,327.10 = 14,354,982.48 : x
  2. Step 2: Convert to fraction form
    18,952,751.55/28,354,327.10 = 14,354,982.48/x
  3. Step 3: Cross multiply
    18,952,751.55x = 28,354,327.10 × 14,354,982.48
  4. Step 4: Simplify right side
    18,952,751.55x = 407,025,868,752,689.25
  5. Step 5: Solve for x
    x = 407,025,868,752,689.25/18,952,751.55
  6. Step 6: Final answer
    x = 21,475,819.36

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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.