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Finding the Fourth Proportional to 42,586.88, 63,836.80 and 14,862.08

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Solution

The fourth proportional to 42,586.88, 63,836.80 and 14,862.08 is: 22,277.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,586.88 : 63,836.80 = 14,862.08 : x
  2. Step 2: Convert to fraction form
    42,586.88/63,836.80 = 14,862.08/x
  3. Step 3: Cross multiply
    42,586.88x = 63,836.80 × 14,862.08
  4. Step 4: Simplify right side
    42,586.88x = 948,747,628.54
  5. Step 5: Solve for x
    x = 948,747,628.54/42,586.88
  6. Step 6: Final answer
    x = 22,277.93

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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.