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Finding the Fourth Proportional to 73,248.55, 109,863.07 and 20,662.27

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Solution

The fourth proportional to 73,248.55, 109,863.07 and 20,662.27 is: 30,990.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,248.55 : 109,863.07 = 20,662.27 : x
  2. Step 2: Convert to fraction form
    73,248.55/109,863.07 = 20,662.27/x
  3. Step 3: Cross multiply
    73,248.55x = 109,863.07 × 20,662.27
  4. Step 4: Simplify right side
    73,248.55x = 2,270,020,312.06
  5. Step 5: Solve for x
    x = 2,270,020,312.06/73,248.55
  6. Step 6: Final answer
    x = 30,990.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.