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Finding the Fourth Proportional to 68,572.08, 94,638.22 and 38,359.08

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Solution

The fourth proportional to 68,572.08, 94,638.22 and 38,359.08 is: 52,940.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,572.08 : 94,638.22 = 38,359.08 : x
  2. Step 2: Convert to fraction form
    68,572.08/94,638.22 = 38,359.08/x
  3. Step 3: Cross multiply
    68,572.08x = 94,638.22 × 38,359.08
  4. Step 4: Simplify right side
    68,572.08x = 3,630,235,052.04
  5. Step 5: Solve for x
    x = 3,630,235,052.04/68,572.08
  6. Step 6: Final answer
    x = 52,940.42

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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.