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Finding the Fourth Proportional to 8,714.52, 12,017.76 and 5,732.88

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Solution

The fourth proportional to 8,714.52, 12,017.76 and 5,732.88 is: 7,905.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,714.52 : 12,017.76 = 5,732.88 : x
  2. Step 2: Convert to fraction form
    8,714.52/12,017.76 = 5,732.88/x
  3. Step 3: Cross multiply
    8,714.52x = 12,017.76 × 5,732.88
  4. Step 4: Simplify right side
    8,714.52x = 68,896,375.95
  5. Step 5: Solve for x
    x = 68,896,375.95/8,714.52
  6. Step 6: Final answer
    x = 7,905.93

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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.