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Finding the Fourth Proportional to 57,260.88, 85,915.80 and 29,578.32

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Solution

The fourth proportional to 57,260.88, 85,915.80 and 29,578.32 is: 44,380.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,260.88 : 85,915.80 = 29,578.32 : x
  2. Step 2: Convert to fraction form
    57,260.88/85,915.80 = 29,578.32/x
  3. Step 3: Cross multiply
    57,260.88x = 85,915.80 × 29,578.32
  4. Step 4: Simplify right side
    57,260.88x = 2,541,245,025.46
  5. Step 5: Solve for x
    x = 2,541,245,025.46/57,260.88
  6. Step 6: Final answer
    x = 44,380.13

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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.