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Finding the Fourth Proportional to 15,157.96, 22,721.58 and 6,395.08

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Solution

The fourth proportional to 15,157.96, 22,721.58 and 6,395.08 is: 9,586.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,157.96 : 22,721.58 = 6,395.08 : x
  2. Step 2: Convert to fraction form
    15,157.96/22,721.58 = 6,395.08/x
  3. Step 3: Cross multiply
    15,157.96x = 22,721.58 × 6,395.08
  4. Step 4: Simplify right side
    15,157.96x = 145,306,321.83
  5. Step 5: Solve for x
    x = 145,306,321.83/15,157.96
  6. Step 6: Final answer
    x = 9,586.14

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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.