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Finding the Fourth Proportional to 58,661.28, 87,974.51 and 16,538.31

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Solution

The fourth proportional to 58,661.28, 87,974.51 and 16,538.31 is: 24,802.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,661.28 : 87,974.51 = 16,538.31 : x
  2. Step 2: Convert to fraction form
    58,661.28/87,974.51 = 16,538.31/x
  3. Step 3: Cross multiply
    58,661.28x = 87,974.51 × 16,538.31
  4. Step 4: Simplify right side
    58,661.28x = 1,454,949,635.79
  5. Step 5: Solve for x
    x = 1,454,949,635.79/58,661.28
  6. Step 6: Final answer
    x = 24,802.56

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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.