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Finding the Fourth Proportional to 39,293.54, 58,939.73 and 9,711.38

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Solution

The fourth proportional to 39,293.54, 58,939.73 and 9,711.38 is: 14,566.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,293.54 : 58,939.73 = 9,711.38 : x
  2. Step 2: Convert to fraction form
    39,293.54/58,939.73 = 9,711.38/x
  3. Step 3: Cross multiply
    39,293.54x = 58,939.73 × 9,711.38
  4. Step 4: Simplify right side
    39,293.54x = 572,385,844.71
  5. Step 5: Solve for x
    x = 572,385,844.71/39,293.54
  6. Step 6: Final answer
    x = 14,566.92

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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.