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Finding the Fourth Proportional to 72,672.84, 109,006.20 and 25,298.82

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Solution

The fourth proportional to 72,672.84, 109,006.20 and 25,298.82 is: 37,947.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,672.84 : 109,006.20 = 25,298.82 : x
  2. Step 2: Convert to fraction form
    72,672.84/109,006.20 = 25,298.82/x
  3. Step 3: Cross multiply
    72,672.84x = 109,006.20 × 25,298.82
  4. Step 4: Simplify right side
    72,672.84x = 2,757,728,232.68
  5. Step 5: Solve for x
    x = 2,757,728,232.68/72,672.84
  6. Step 6: Final answer
    x = 37,947.16

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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.