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Finding the Fourth Proportional to 7,691.52, 10,612.10 and 4,333.16

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Solution

The fourth proportional to 7,691.52, 10,612.10 and 4,333.16 is: 5,978.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.52 : 10,612.10 = 4,333.16 : x
  2. Step 2: Convert to fraction form
    7,691.52/10,612.10 = 4,333.16/x
  3. Step 3: Cross multiply
    7,691.52x = 10,612.10 × 4,333.16
  4. Step 4: Simplify right side
    7,691.52x = 45,983,964.60
  5. Step 5: Solve for x
    x = 45,983,964.60/7,691.52
  6. Step 6: Final answer
    x = 5,978.53

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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.