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Finding the Fourth Proportional to 75,644.70, 113,434.25 and 25,711.39

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Solution

The fourth proportional to 75,644.70, 113,434.25 and 25,711.39 is: 38,555.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,644.70 : 113,434.25 = 25,711.39 : x
  2. Step 2: Convert to fraction form
    75,644.70/113,434.25 = 25,711.39/x
  3. Step 3: Cross multiply
    75,644.70x = 113,434.25 × 25,711.39
  4. Step 4: Simplify right side
    75,644.70x = 2,916,552,254.34
  5. Step 5: Solve for x
    x = 2,916,552,254.34/75,644.70
  6. Step 6: Final answer
    x = 38,555.94

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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.