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Finding the Fourth Proportional to 19,332, 29,002.86 and 5,481

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Solution

The fourth proportional to 19,332, 29,002.86 and 5,481 is: 8,222.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,332 : 29,002.86 = 5,481 : x
  2. Step 2: Convert to fraction form
    19,332/29,002.86 = 5,481/x
  3. Step 3: Cross multiply
    19,332x = 29,002.86 × 5,481
  4. Step 4: Simplify right side
    19,332x = 158,964,675.66
  5. Step 5: Solve for x
    x = 158,964,675.66/19,332
  6. Step 6: Final answer
    x = 8,222.88

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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.