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Finding the Fourth Proportional to 68,859.49, 95,025.72 and 38,644.78

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Solution

The fourth proportional to 68,859.49, 95,025.72 and 38,644.78 is: 53,329.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,859.49 : 95,025.72 = 38,644.78 : x
  2. Step 2: Convert to fraction form
    68,859.49/95,025.72 = 38,644.78/x
  3. Step 3: Cross multiply
    68,859.49x = 95,025.72 × 38,644.78
  4. Step 4: Simplify right side
    68,859.49x = 3,672,248,043.74
  5. Step 5: Solve for x
    x = 3,672,248,043.74/68,859.49
  6. Step 6: Final answer
    x = 53,329.59

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1.5x scale

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.