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Finding the Fourth Proportional to 75,189.92, 112,787.64 and 25,271.72

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Solution

The fourth proportional to 75,189.92, 112,787.64 and 25,271.72 is: 37,908.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,189.92 : 112,787.64 = 25,271.72 : x
  2. Step 2: Convert to fraction form
    75,189.92/112,787.64 = 25,271.72/x
  3. Step 3: Cross multiply
    75,189.92x = 112,787.64 × 25,271.72
  4. Step 4: Simplify right side
    75,189.92x = 2,850,337,657.54
  5. Step 5: Solve for x
    x = 2,850,337,657.54/75,189.92
  6. Step 6: Final answer
    x = 37,908.51

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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.