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Finding the Fourth Proportional to 15,318.29, 22,978.85 and 5,959.01

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Solution

The fourth proportional to 15,318.29, 22,978.85 and 5,959.01 is: 8,939.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,318.29 : 22,978.85 = 5,959.01 : x
  2. Step 2: Convert to fraction form
    15,318.29/22,978.85 = 5,959.01/x
  3. Step 3: Cross multiply
    15,318.29x = 22,978.85 × 5,959.01
  4. Step 4: Simplify right side
    15,318.29x = 136,931,052.25
  5. Step 5: Solve for x
    x = 136,931,052.25/15,318.29
  6. Step 6: Final answer
    x = 8,939.06

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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.