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Finding the Fourth Proportional to 72,224.80, 108,340.24 and 25,477.92

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Solution

The fourth proportional to 72,224.80, 108,340.24 and 25,477.92 is: 38,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,224.80 : 108,340.24 = 25,477.92 : x
  2. Step 2: Convert to fraction form
    72,224.80/108,340.24 = 25,477.92/x
  3. Step 3: Cross multiply
    72,224.80x = 108,340.24 × 25,477.92
  4. Step 4: Simplify right side
    72,224.80x = 2,760,283,967.50
  5. Step 5: Solve for x
    x = 2,760,283,967.50/72,224.80
  6. Step 6: Final answer
    x = 38,217.95

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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.