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Finding the Fourth Proportional to 60,638.31, 90,970.07 and 25,578.27

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Solution

The fourth proportional to 60,638.31, 90,970.07 and 25,578.27 is: 38,372.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,638.31 : 90,970.07 = 25,578.27 : x
  2. Step 2: Convert to fraction form
    60,638.31/90,970.07 = 25,578.27/x
  3. Step 3: Cross multiply
    60,638.31x = 90,970.07 × 25,578.27
  4. Step 4: Simplify right side
    60,638.31x = 2,326,856,884.49
  5. Step 5: Solve for x
    x = 2,326,856,884.49/60,638.31
  6. Step 6: Final answer
    x = 38,372.72

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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.