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Finding the Fourth Proportional to 68,019.84, 93,866.88 and 38,211.84

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Solution

The fourth proportional to 68,019.84, 93,866.88 and 38,211.84 is: 52,732.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,019.84 : 93,866.88 = 38,211.84 : x
  2. Step 2: Convert to fraction form
    68,019.84/93,866.88 = 38,211.84/x
  3. Step 3: Cross multiply
    68,019.84x = 93,866.88 × 38,211.84
  4. Step 4: Simplify right side
    68,019.84x = 3,586,826,199.86
  5. Step 5: Solve for x
    x = 3,586,826,199.86/68,019.84
  6. Step 6: Final answer
    x = 52,732.06

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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.