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Finding the Fourth Proportional to 68,877.84, 95,061.42 and 38,675.64

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Solution

The fourth proportional to 68,877.84, 95,061.42 and 38,675.64 is: 53,378.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,877.84 : 95,061.42 = 38,675.64 : x
  2. Step 2: Convert to fraction form
    68,877.84/95,061.42 = 38,675.64/x
  3. Step 3: Cross multiply
    68,877.84x = 95,061.42 × 38,675.64
  4. Step 4: Simplify right side
    68,877.84x = 3,676,561,257.81
  5. Step 5: Solve for x
    x = 3,676,561,257.81/68,877.84
  6. Step 6: Final answer
    x = 53,378.00

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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.