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Finding the Fourth Proportional to 7,404.08, 10,207.68 and 7,174.76

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Solution

The fourth proportional to 7,404.08, 10,207.68 and 7,174.76 is: 9,891.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,404.08 : 10,207.68 = 7,174.76 : x
  2. Step 2: Convert to fraction form
    7,404.08/10,207.68 = 7,174.76/x
  3. Step 3: Cross multiply
    7,404.08x = 10,207.68 × 7,174.76
  4. Step 4: Simplify right side
    7,404.08x = 73,237,654.16
  5. Step 5: Solve for x
    x = 73,237,654.16/7,404.08
  6. Step 6: Final answer
    x = 9,891.53

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Half 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.