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Finding the Fourth Proportional to 75,251.20, 112,873.20 and 25,326.40

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Solution

The fourth proportional to 75,251.20, 112,873.20 and 25,326.40 is: 37,988.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,251.20 : 112,873.20 = 25,326.40 : x
  2. Step 2: Convert to fraction form
    75,251.20/112,873.20 = 25,326.40/x
  3. Step 3: Cross multiply
    75,251.20x = 112,873.20 × 25,326.40
  4. Step 4: Simplify right side
    75,251.20x = 2,858,671,812.48
  5. Step 5: Solve for x
    x = 2,858,671,812.48/75,251.20
  6. Step 6: Final answer
    x = 37,988.39

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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.