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Finding the Fourth Proportional to 32,391.31, 44,711.20 and 18,966.88

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Solution

The fourth proportional to 32,391.31, 44,711.20 and 18,966.88 is: 26,180.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,391.31 : 44,711.20 = 18,966.88 : x
  2. Step 2: Convert to fraction form
    32,391.31/44,711.20 = 18,966.88/x
  3. Step 3: Cross multiply
    32,391.31x = 44,711.20 × 18,966.88
  4. Step 4: Simplify right side
    32,391.31x = 848,031,965.06
  5. Step 5: Solve for x
    x = 848,031,965.06/32,391.31
  6. Step 6: Final answer
    x = 26,180.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.