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Finding the Fourth Proportional to 60,478.76, 83,424.24 and 38,961.41

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Solution

The fourth proportional to 60,478.76, 83,424.24 and 38,961.41 is: 53,743.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,478.76 : 83,424.24 = 38,961.41 : x
  2. Step 2: Convert to fraction form
    60,478.76/83,424.24 = 38,961.41/x
  3. Step 3: Cross multiply
    60,478.76x = 83,424.24 × 38,961.41
  4. Step 4: Simplify right side
    60,478.76x = 3,250,326,018.58
  5. Step 5: Solve for x
    x = 3,250,326,018.58/60,478.76
  6. Step 6: Final answer
    x = 53,743.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.