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Finding the Fourth Proportional to 6,539.92, 9,026.25 and 3,888.22

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Solution

The fourth proportional to 6,539.92, 9,026.25 and 3,888.22 is: 5,366.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,539.92 : 9,026.25 = 3,888.22 : x
  2. Step 2: Convert to fraction form
    6,539.92/9,026.25 = 3,888.22/x
  3. Step 3: Cross multiply
    6,539.92x = 9,026.25 × 3,888.22
  4. Step 4: Simplify right side
    6,539.92x = 35,096,045.78
  5. Step 5: Solve for x
    x = 35,096,045.78/6,539.92
  6. Step 6: Final answer
    x = 5,366.43

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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.