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Finding the Fourth Proportional to 75,309.71, 112,885.75 and 25,372.55

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Solution

The fourth proportional to 75,309.71, 112,885.75 and 25,372.55 is: 38,032.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,309.71 : 112,885.75 = 25,372.55 : x
  2. Step 2: Convert to fraction form
    75,309.71/112,885.75 = 25,372.55/x
  3. Step 3: Cross multiply
    75,309.71x = 112,885.75 × 25,372.55
  4. Step 4: Simplify right side
    75,309.71x = 2,864,199,336.16
  5. Step 5: Solve for x
    x = 2,864,199,336.16/75,309.71
  6. Step 6: Final answer
    x = 38,032.27

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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.