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Finding the Fourth Proportional to 74,915.68, 112,335.62 and 24,978.28

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Solution

The fourth proportional to 74,915.68, 112,335.62 and 24,978.28 is: 37,454.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,915.68 : 112,335.62 = 24,978.28 : x
  2. Step 2: Convert to fraction form
    74,915.68/112,335.62 = 24,978.28/x
  3. Step 3: Cross multiply
    74,915.68x = 112,335.62 × 24,978.28
  4. Step 4: Simplify right side
    74,915.68x = 2,805,950,570.33
  5. Step 5: Solve for x
    x = 2,805,950,570.33/74,915.68
  6. Step 6: Final answer
    x = 37,454.78

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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.