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Finding the Fourth Proportional to 72,247.72, 108,383.15 and 22,316.08

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Solution

The fourth proportional to 72,247.72, 108,383.15 and 22,316.08 is: 33,477.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,247.72 : 108,383.15 = 22,316.08 : x
  2. Step 2: Convert to fraction form
    72,247.72/108,383.15 = 22,316.08/x
  3. Step 3: Cross multiply
    72,247.72x = 108,383.15 × 22,316.08
  4. Step 4: Simplify right side
    72,247.72x = 2,418,687,046.05
  5. Step 5: Solve for x
    x = 2,418,687,046.05/72,247.72
  6. Step 6: Final answer
    x = 33,477.69

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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.