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Finding the Fourth Proportional to 7,691.08, 10,612.82 and 4,333.64

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Solution

The fourth proportional to 7,691.08, 10,612.82 and 4,333.64 is: 5,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.08 : 10,612.82 = 4,333.64 : x
  2. Step 2: Convert to fraction form
    7,691.08/10,612.82 = 4,333.64/x
  3. Step 3: Cross multiply
    7,691.08x = 10,612.82 × 4,333.64
  4. Step 4: Simplify right side
    7,691.08x = 45,992,141.26
  5. Step 5: Solve for x
    x = 45,992,141.26/7,691.08
  6. Step 6: Final answer
    x = 5,979.93

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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.