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Finding the Fourth Proportional to 68,894.64, 95,050.80 and 38,675.76

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Solution

The fourth proportional to 68,894.64, 95,050.80 and 38,675.76 is: 53,359.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,894.64 : 95,050.80 = 38,675.76 : x
  2. Step 2: Convert to fraction form
    68,894.64/95,050.80 = 38,675.76/x
  3. Step 3: Cross multiply
    68,894.64x = 95,050.80 × 38,675.76
  4. Step 4: Simplify right side
    68,894.64x = 3,676,161,928.61
  5. Step 5: Solve for x
    x = 3,676,161,928.61/68,894.64
  6. Step 6: Final answer
    x = 53,359.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.