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Finding the Fourth Proportional to 60,427, 90,645.62 and 16,651

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Solution

The fourth proportional to 60,427, 90,645.62 and 16,651 is: 24,977.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,427 : 90,645.62 = 16,651 : x
  2. Step 2: Convert to fraction form
    60,427/90,645.62 = 16,651/x
  3. Step 3: Cross multiply
    60,427x = 90,645.62 × 16,651
  4. Step 4: Simplify right side
    60,427x = 1,509,340,218.62
  5. Step 5: Solve for x
    x = 1,509,340,218.62/60,427
  6. Step 6: Final answer
    x = 24,977.91

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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.