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Finding the Fourth Proportional to 40,839.79, 61,202.21 and 32,482.71

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Solution

The fourth proportional to 40,839.79, 61,202.21 and 32,482.71 is: 48,678.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,839.79 : 61,202.21 = 32,482.71 : x
  2. Step 2: Convert to fraction form
    40,839.79/61,202.21 = 32,482.71/x
  3. Step 3: Cross multiply
    40,839.79x = 61,202.21 × 32,482.71
  4. Step 4: Simplify right side
    40,839.79x = 1,988,013,638.79
  5. Step 5: Solve for x
    x = 1,988,013,638.79/40,839.79
  6. Step 6: Final answer
    x = 48,678.36

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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.