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Finding the Fourth Proportional to 41,143.80, 61,715.70 and 14,851.20

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Solution

The fourth proportional to 41,143.80, 61,715.70 and 14,851.20 is: 22,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,143.80 : 61,715.70 = 14,851.20 : x
  2. Step 2: Convert to fraction form
    41,143.80/61,715.70 = 14,851.20/x
  3. Step 3: Cross multiply
    41,143.80x = 61,715.70 × 14,851.20
  4. Step 4: Simplify right side
    41,143.80x = 916,552,203.84
  5. Step 5: Solve for x
    x = 916,552,203.84/41,143.80
  6. Step 6: Final answer
    x = 22,276.80

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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.