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Finding the Fourth Proportional to 9,372.73, 12,934.38 and 5,393.76

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Solution

The fourth proportional to 9,372.73, 12,934.38 and 5,393.76 is: 7,443.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372.73 : 12,934.38 = 5,393.76 : x
  2. Step 2: Convert to fraction form
    9,372.73/12,934.38 = 5,393.76/x
  3. Step 3: Cross multiply
    9,372.73x = 12,934.38 × 5,393.76
  4. Step 4: Simplify right side
    9,372.73x = 69,764,941.47
  5. Step 5: Solve for x
    x = 69,764,941.47/9,372.73
  6. Step 6: Final answer
    x = 7,443.40

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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.