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Finding the Fourth Proportional to 38,972,550.80, 58,409,059.80 and 29,952,390.80

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Solution

The fourth proportional to 38,972,550.80, 58,409,059.80 and 29,952,390.80 is: 44,890,338.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,972,550.80 : 58,409,059.80 = 29,952,390.80 : x
  2. Step 2: Convert to fraction form
    38,972,550.80/58,409,059.80 = 29,952,390.80/x
  3. Step 3: Cross multiply
    38,972,550.80x = 58,409,059.80 × 29,952,390.80
  4. Step 4: Simplify right side
    38,972,550.80x = 1,749,490,985,390,169.75
  5. Step 5: Solve for x
    x = 1,749,490,985,390,169.75/38,972,550.80
  6. Step 6: Final answer
    x = 44,890,338.19

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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.