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Finding the Fourth Proportional to 7,500.47, 11,250.67 and 7,043.73

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Solution

The fourth proportional to 7,500.47, 11,250.67 and 7,043.73 is: 10,565.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,500.47 : 11,250.67 = 7,043.73 : x
  2. Step 2: Convert to fraction form
    7,500.47/11,250.67 = 7,043.73/x
  3. Step 3: Cross multiply
    7,500.47x = 11,250.67 × 7,043.73
  4. Step 4: Simplify right side
    7,500.47x = 79,246,749.94
  5. Step 5: Solve for x
    x = 79,246,749.94/7,500.47
  6. Step 6: Final answer
    x = 10,565.57

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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.