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Finding the Fourth Proportional to 9,058.88, 12,498.31 and 5,281.19

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Solution

The fourth proportional to 9,058.88, 12,498.31 and 5,281.19 is: 7,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,058.88 : 12,498.31 = 5,281.19 : x
  2. Step 2: Convert to fraction form
    9,058.88/12,498.31 = 5,281.19/x
  3. Step 3: Cross multiply
    9,058.88x = 12,498.31 × 5,281.19
  4. Step 4: Simplify right side
    9,058.88x = 66,005,949.79
  5. Step 5: Solve for x
    x = 66,005,949.79/9,058.88
  6. Step 6: Final answer
    x = 7,286.33

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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.