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Finding the Fourth Proportional to 15,168.65, 22,760.18 and 6,851.21

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Solution

The fourth proportional to 15,168.65, 22,760.18 and 6,851.21 is: 10,280.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,168.65 : 22,760.18 = 6,851.21 : x
  2. Step 2: Convert to fraction form
    15,168.65/22,760.18 = 6,851.21/x
  3. Step 3: Cross multiply
    15,168.65x = 22,760.18 × 6,851.21
  4. Step 4: Simplify right side
    15,168.65x = 155,934,650.45
  5. Step 5: Solve for x
    x = 155,934,650.45/15,168.65
  6. Step 6: Final answer
    x = 10,280.06

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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.