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Finding the Fourth Proportional to 8,357.92, 11,553.68 and 6,695.76

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Solution

The fourth proportional to 8,357.92, 11,553.68 and 6,695.76 is: 9,255.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,357.92 : 11,553.68 = 6,695.76 : x
  2. Step 2: Convert to fraction form
    8,357.92/11,553.68 = 6,695.76/x
  3. Step 3: Cross multiply
    8,357.92x = 11,553.68 × 6,695.76
  4. Step 4: Simplify right side
    8,357.92x = 77,360,668.40
  5. Step 5: Solve for x
    x = 77,360,668.40/8,357.92
  6. Step 6: Final answer
    x = 9,255.97

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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.