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Finding the Fourth Proportional to 7,473.98, 10,239.39 and 7,193.72

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Solution

The fourth proportional to 7,473.98, 10,239.39 and 7,193.72 is: 9,855.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,473.98 : 10,239.39 = 7,193.72 : x
  2. Step 2: Convert to fraction form
    7,473.98/10,239.39 = 7,193.72/x
  3. Step 3: Cross multiply
    7,473.98x = 10,239.39 × 7,193.72
  4. Step 4: Simplify right side
    7,473.98x = 73,659,217.47
  5. Step 5: Solve for x
    x = 73,659,217.47/7,473.98
  6. Step 6: Final answer
    x = 9,855.43

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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 (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.