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Finding the Fourth Proportional to 68,458.32, 94,469.52 and 38,243.52

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Solution

The fourth proportional to 68,458.32, 94,469.52 and 38,243.52 is: 52,774.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,458.32 : 94,469.52 = 38,243.52 : x
  2. Step 2: Convert to fraction form
    68,458.32/94,469.52 = 38,243.52/x
  3. Step 3: Cross multiply
    68,458.32x = 94,469.52 × 38,243.52
  4. Step 4: Simplify right side
    68,458.32x = 3,612,846,977.51
  5. Step 5: Solve for x
    x = 3,612,846,977.51/68,458.32
  6. Step 6: Final answer
    x = 52,774.40

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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.