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Finding the Fourth Proportional to 39,463.71, 59,193.54 and 9,879.81

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Solution

The fourth proportional to 39,463.71, 59,193.54 and 9,879.81 is: 14,819.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,463.71 : 59,193.54 = 9,879.81 : x
  2. Step 2: Convert to fraction form
    39,463.71/59,193.54 = 9,879.81/x
  3. Step 3: Cross multiply
    39,463.71x = 59,193.54 × 9,879.81
  4. Step 4: Simplify right side
    39,463.71x = 584,820,928.43
  5. Step 5: Solve for x
    x = 584,820,928.43/39,463.71
  6. Step 6: Final answer
    x = 14,819.21

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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.