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Finding the Fourth Proportional to 68,459.55, 94,470.79 and 38,238.85

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Solution

The fourth proportional to 68,459.55, 94,470.79 and 38,238.85 is: 52,767.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,459.55 : 94,470.79 = 38,238.85 : x
  2. Step 2: Convert to fraction form
    68,459.55/94,470.79 = 38,238.85/x
  3. Step 3: Cross multiply
    68,459.55x = 94,470.79 × 38,238.85
  4. Step 4: Simplify right side
    68,459.55x = 3,612,454,368.19
  5. Step 5: Solve for x
    x = 3,612,454,368.19/68,459.55
  6. Step 6: Final answer
    x = 52,767.72

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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.