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Finding the Fourth Proportional to 31,932.03, 47,892.57 and 8,553

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Solution

The fourth proportional to 31,932.03, 47,892.57 and 8,553 is: 12,828.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,932.03 : 47,892.57 = 8,553 : x
  2. Step 2: Convert to fraction form
    31,932.03/47,892.57 = 8,553/x
  3. Step 3: Cross multiply
    31,932.03x = 47,892.57 × 8,553
  4. Step 4: Simplify right side
    31,932.03x = 409,625,151.21
  5. Step 5: Solve for x
    x = 409,625,151.21/31,932.03
  6. Step 6: Final answer
    x = 12,828.03

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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.