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Finding the Fourth Proportional to 48,472.93, 72,711.01 and 13,409.65

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Solution

The fourth proportional to 48,472.93, 72,711.01 and 13,409.65 is: 20,114.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,472.93 : 72,711.01 = 13,409.65 : x
  2. Step 2: Convert to fraction form
    48,472.93/72,711.01 = 13,409.65/x
  3. Step 3: Cross multiply
    48,472.93x = 72,711.01 × 13,409.65
  4. Step 4: Simplify right side
    48,472.93x = 975,028,831.69
  5. Step 5: Solve for x
    x = 975,028,831.69/48,472.93
  6. Step 6: Final answer
    x = 20,114.92

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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.