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Finding the Fourth Proportional to 8,301.70, 12,452.55 and 6,120.10

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Solution

The fourth proportional to 8,301.70, 12,452.55 and 6,120.10 is: 9,180.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,301.70 : 12,452.55 = 6,120.10 : x
  2. Step 2: Convert to fraction form
    8,301.70/12,452.55 = 6,120.10/x
  3. Step 3: Cross multiply
    8,301.70x = 12,452.55 × 6,120.10
  4. Step 4: Simplify right side
    8,301.70x = 76,210,851.26
  5. Step 5: Solve for x
    x = 76,210,851.26/8,301.70
  6. Step 6: Final answer
    x = 9,180.15

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Similar ratio
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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.