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Finding the Fourth Proportional to 47,908.71, 71,863.88 and 15,887.93

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Solution

The fourth proportional to 47,908.71, 71,863.88 and 15,887.93 is: 23,832.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,908.71 : 71,863.88 = 15,887.93 : x
  2. Step 2: Convert to fraction form
    47,908.71/71,863.88 = 15,887.93/x
  3. Step 3: Cross multiply
    47,908.71x = 71,863.88 × 15,887.93
  4. Step 4: Simplify right side
    47,908.71x = 1,141,767,856.21
  5. Step 5: Solve for x
    x = 1,141,767,856.21/47,908.71
  6. Step 6: Final answer
    x = 23,832.16

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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.