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Finding the Fourth Proportional to 39,980.15, 59,840.03 and 29,446.03

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Solution

The fourth proportional to 39,980.15, 59,840.03 and 29,446.03 is: 44,073.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,980.15 : 59,840.03 = 29,446.03 : x
  2. Step 2: Convert to fraction form
    39,980.15/59,840.03 = 29,446.03/x
  3. Step 3: Cross multiply
    39,980.15x = 59,840.03 × 29,446.03
  4. Step 4: Simplify right side
    39,980.15x = 1,762,051,019.38
  5. Step 5: Solve for x
    x = 1,762,051,019.38/39,980.15
  6. Step 6: Final answer
    x = 44,073.15

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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.