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Finding the Fourth Proportional to 75,902.36, 113,866.92 and 25,970.72

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Solution

The fourth proportional to 75,902.36, 113,866.92 and 25,970.72 is: 38,960.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,902.36 : 113,866.92 = 25,970.72 : x
  2. Step 2: Convert to fraction form
    75,902.36/113,866.92 = 25,970.72/x
  3. Step 3: Cross multiply
    75,902.36x = 113,866.92 × 25,970.72
  4. Step 4: Simplify right side
    75,902.36x = 2,957,205,896.58
  5. Step 5: Solve for x
    x = 2,957,205,896.58/75,902.36
  6. Step 6: Final answer
    x = 38,960.66

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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.