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Finding the Fourth Proportional to 40,881.30, 61,311.42 and 14,582.22

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Solution

The fourth proportional to 40,881.30, 61,311.42 and 14,582.22 is: 21,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,881.30 : 61,311.42 = 14,582.22 : x
  2. Step 2: Convert to fraction form
    40,881.30/61,311.42 = 14,582.22/x
  3. Step 3: Cross multiply
    40,881.30x = 61,311.42 × 14,582.22
  4. Step 4: Simplify right side
    40,881.30x = 894,056,614.95
  5. Step 5: Solve for x
    x = 894,056,614.95/40,881.30
  6. Step 6: Final answer
    x = 21,869.57

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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.