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Finding the Fourth Proportional to 68,440.92, 94,441.80 and 38,223.84

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Solution

The fourth proportional to 68,440.92, 94,441.80 and 38,223.84 is: 52,745.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,440.92 : 94,441.80 = 38,223.84 : x
  2. Step 2: Convert to fraction form
    68,440.92/94,441.80 = 38,223.84/x
  3. Step 3: Cross multiply
    68,440.92x = 94,441.80 × 38,223.84
  4. Step 4: Simplify right side
    68,440.92x = 3,609,928,252.51
  5. Step 5: Solve for x
    x = 3,609,928,252.51/68,440.92
  6. Step 6: Final answer
    x = 52,745.17

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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.