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Finding the Fourth Proportional to 9,158.52, 12,603.96 and 8,764.92

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Solution

The fourth proportional to 9,158.52, 12,603.96 and 8,764.92 is: 12,062.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,158.52 : 12,603.96 = 8,764.92 : x
  2. Step 2: Convert to fraction form
    9,158.52/12,603.96 = 8,764.92/x
  3. Step 3: Cross multiply
    9,158.52x = 12,603.96 × 8,764.92
  4. Step 4: Simplify right side
    9,158.52x = 110,472,701.08
  5. Step 5: Solve for x
    x = 110,472,701.08/9,158.52
  6. Step 6: Final answer
    x = 12,062.29

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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.