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Finding the Fourth Proportional to 8,451.32, 11,658.94 and 5,468.12

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Solution

The fourth proportional to 8,451.32, 11,658.94 and 5,468.12 is: 7,543.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.32 : 11,658.94 = 5,468.12 : x
  2. Step 2: Convert to fraction form
    8,451.32/11,658.94 = 5,468.12/x
  3. Step 3: Cross multiply
    8,451.32x = 11,658.94 × 5,468.12
  4. Step 4: Simplify right side
    8,451.32x = 63,752,498.47
  5. Step 5: Solve for x
    x = 63,752,498.47/8,451.32
  6. Step 6: Final answer
    x = 7,543.50

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Half scale
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Double scale
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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.