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Finding the Fourth Proportional to 7,562.40, 11,280.72 and 7,441.44

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Solution

The fourth proportional to 7,562.40, 11,280.72 and 7,441.44 is: 11,100.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,562.40 : 11,280.72 = 7,441.44 : x
  2. Step 2: Convert to fraction form
    7,562.40/11,280.72 = 7,441.44/x
  3. Step 3: Cross multiply
    7,562.40x = 11,280.72 × 7,441.44
  4. Step 4: Simplify right side
    7,562.40x = 83,944,801.04
  5. Step 5: Solve for x
    x = 83,944,801.04/7,562.40
  6. Step 6: Final answer
    x = 11,100.29

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