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Finding the Fourth Proportional to 8,753.57, 13,130.36 and 2,910.18

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Solution

The fourth proportional to 8,753.57, 13,130.36 and 2,910.18 is: 4,365.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.57 : 13,130.36 = 2,910.18 : x
  2. Step 2: Convert to fraction form
    8,753.57/13,130.36 = 2,910.18/x
  3. Step 3: Cross multiply
    8,753.57x = 13,130.36 × 2,910.18
  4. Step 4: Simplify right side
    8,753.57x = 38,211,711.06
  5. Step 5: Solve for x
    x = 38,211,711.06/8,753.57
  6. Step 6: Final answer
    x = 4,365.27

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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.