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Finding the Fourth Proportional to 7,658.76, 11,488.14 and 5,061.09

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Solution

The fourth proportional to 7,658.76, 11,488.14 and 5,061.09 is: 7,591.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,658.76 : 11,488.14 = 5,061.09 : x
  2. Step 2: Convert to fraction form
    7,658.76/11,488.14 = 5,061.09/x
  3. Step 3: Cross multiply
    7,658.76x = 11,488.14 × 5,061.09
  4. Step 4: Simplify right side
    7,658.76x = 58,142,510.47
  5. Step 5: Solve for x
    x = 58,142,510.47/7,658.76
  6. Step 6: Final answer
    x = 7,591.64

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.