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Finding the Fourth Proportional to 68,565.72, 94,611.24 and 38,349.48

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Solution

The fourth proportional to 68,565.72, 94,611.24 and 38,349.48 is: 52,916.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,565.72 : 94,611.24 = 38,349.48 : x
  2. Step 2: Convert to fraction form
    68,565.72/94,611.24 = 38,349.48/x
  3. Step 3: Cross multiply
    68,565.72x = 94,611.24 × 38,349.48
  4. Step 4: Simplify right side
    68,565.72x = 3,628,291,856.16
  5. Step 5: Solve for x
    x = 3,628,291,856.16/68,565.72
  6. Step 6: Final answer
    x = 52,916.99

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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.