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Finding the Fourth Proportional to 9,062.10, 13,605.30 and 5,781.60

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Solution

The fourth proportional to 9,062.10, 13,605.30 and 5,781.60 is: 8,680.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,062.10 : 13,605.30 = 5,781.60 : x
  2. Step 2: Convert to fraction form
    9,062.10/13,605.30 = 5,781.60/x
  3. Step 3: Cross multiply
    9,062.10x = 13,605.30 × 5,781.60
  4. Step 4: Simplify right side
    9,062.10x = 78,660,402.48
  5. Step 5: Solve for x
    x = 78,660,402.48/9,062.10
  6. Step 6: Final answer
    x = 8,680.15

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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.