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Finding the Fourth Proportional to 7,164.87, 10,747.31 and 7,000.85

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Solution

The fourth proportional to 7,164.87, 10,747.31 and 7,000.85 is: 10,501.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,164.87 : 10,747.31 = 7,000.85 : x
  2. Step 2: Convert to fraction form
    7,164.87/10,747.31 = 7,000.85/x
  3. Step 3: Cross multiply
    7,164.87x = 10,747.31 × 7,000.85
  4. Step 4: Simplify right side
    7,164.87x = 75,240,216.47
  5. Step 5: Solve for x
    x = 75,240,216.47/7,164.87
  6. Step 6: Final answer
    x = 10,501.27

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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.