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Finding the Fourth Proportional to 15,187.16, 22,766.82 and 5,321.04

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Solution

The fourth proportional to 15,187.16, 22,766.82 and 5,321.04 is: 7,976.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187.16 : 22,766.82 = 5,321.04 : x
  2. Step 2: Convert to fraction form
    15,187.16/22,766.82 = 5,321.04/x
  3. Step 3: Cross multiply
    15,187.16x = 22,766.82 × 5,321.04
  4. Step 4: Simplify right side
    15,187.16x = 121,143,159.89
  5. Step 5: Solve for x
    x = 121,143,159.89/15,187.16
  6. Step 6: Final answer
    x = 7,976.68

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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.