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Finding the Fourth Proportional to 7,493.40, 11,240.10 and 7,444.80

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Solution

The fourth proportional to 7,493.40, 11,240.10 and 7,444.80 is: 11,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,493.40 : 11,240.10 = 7,444.80 : x
  2. Step 2: Convert to fraction form
    7,493.40/11,240.10 = 7,444.80/x
  3. Step 3: Cross multiply
    7,493.40x = 11,240.10 × 7,444.80
  4. Step 4: Simplify right side
    7,493.40x = 83,680,296.48
  5. Step 5: Solve for x
    x = 83,680,296.48/7,493.40
  6. Step 6: Final answer
    x = 11,167.20

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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.