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Finding the Fourth Proportional to 63,247.80, 94,877.10 and 18,871.68

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Solution

The fourth proportional to 63,247.80, 94,877.10 and 18,871.68 is: 28,309.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,247.80 : 94,877.10 = 18,871.68 : x
  2. Step 2: Convert to fraction form
    63,247.80/94,877.10 = 18,871.68/x
  3. Step 3: Cross multiply
    63,247.80x = 94,877.10 × 18,871.68
  4. Step 4: Simplify right side
    63,247.80x = 1,790,490,270.53
  5. Step 5: Solve for x
    x = 1,790,490,270.53/63,247.80
  6. Step 6: Final answer
    x = 28,309.13

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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.