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Finding the Fourth Proportional to 36,239.40, 54,315.90 and 15,179.40

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Solution

The fourth proportional to 36,239.40, 54,315.90 and 15,179.40 is: 22,751.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,239.40 : 54,315.90 = 15,179.40 : x
  2. Step 2: Convert to fraction form
    36,239.40/54,315.90 = 15,179.40/x
  3. Step 3: Cross multiply
    36,239.40x = 54,315.90 × 15,179.40
  4. Step 4: Simplify right side
    36,239.40x = 824,482,772.46
  5. Step 5: Solve for x
    x = 824,482,772.46/36,239.40
  6. Step 6: Final answer
    x = 22,751.01

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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.