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Finding the Fourth Proportional to 6,605.56, 9,115.76 and 4,248.48

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Solution

The fourth proportional to 6,605.56, 9,115.76 and 4,248.48 is: 5,862.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.56 : 9,115.76 = 4,248.48 : x
  2. Step 2: Convert to fraction form
    6,605.56/9,115.76 = 4,248.48/x
  3. Step 3: Cross multiply
    6,605.56x = 9,115.76 × 4,248.48
  4. Step 4: Simplify right side
    6,605.56x = 38,728,124.04
  5. Step 5: Solve for x
    x = 38,728,124.04/6,605.56
  6. Step 6: Final answer
    x = 5,862.96

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