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Finding the Fourth Proportional to 10,472.58, 15,714.24 and 5,791.70

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Solution

The fourth proportional to 10,472.58, 15,714.24 and 5,791.70 is: 8,690.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,472.58 : 15,714.24 = 5,791.70 : x
  2. Step 2: Convert to fraction form
    10,472.58/15,714.24 = 5,791.70/x
  3. Step 3: Cross multiply
    10,472.58x = 15,714.24 × 5,791.70
  4. Step 4: Simplify right side
    10,472.58x = 91,012,163.81
  5. Step 5: Solve for x
    x = 91,012,163.81/10,472.58
  6. Step 6: Final answer
    x = 8,690.52

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1.5x scale

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.