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Finding the Fourth Proportional to 15,966.70, 22,034.72 and 8,893.12

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Solution

The fourth proportional to 15,966.70, 22,034.72 and 8,893.12 is: 12,272.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,966.70 : 22,034.72 = 8,893.12 : x
  2. Step 2: Convert to fraction form
    15,966.70/22,034.72 = 8,893.12/x
  3. Step 3: Cross multiply
    15,966.70x = 22,034.72 × 8,893.12
  4. Step 4: Simplify right side
    15,966.70x = 195,957,254.49
  5. Step 5: Solve for x
    x = 195,957,254.49/15,966.70
  6. Step 6: Final answer
    x = 12,272.88

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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.