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Finding the Fourth Proportional to 48,471.90, 72,707.72 and 15,192.11

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Solution

The fourth proportional to 48,471.90, 72,707.72 and 15,192.11 is: 22,788.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,471.90 : 72,707.72 = 15,192.11 : x
  2. Step 2: Convert to fraction form
    48,471.90/72,707.72 = 15,192.11/x
  3. Step 3: Cross multiply
    48,471.90x = 72,707.72 × 15,192.11
  4. Step 4: Simplify right side
    48,471.90x = 1,104,583,240.59
  5. Step 5: Solve for x
    x = 1,104,583,240.59/48,471.90
  6. Step 6: Final answer
    x = 22,788.12

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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.