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Finding the Fourth Proportional to 9,372.02, 12,934 and 5,393.06

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Solution

The fourth proportional to 9,372.02, 12,934 and 5,393.06 is: 7,442.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372.02 : 12,934 = 5,393.06 : x
  2. Step 2: Convert to fraction form
    9,372.02/12,934 = 5,393.06/x
  3. Step 3: Cross multiply
    9,372.02x = 12,934 × 5,393.06
  4. Step 4: Simplify right side
    9,372.02x = 69,753,838.04
  5. Step 5: Solve for x
    x = 69,753,838.04/9,372.02
  6. Step 6: Final answer
    x = 7,442.78

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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.