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Finding the Fourth Proportional to 39,915.58, 59,873.92 and 19,134.22

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Solution

The fourth proportional to 39,915.58, 59,873.92 and 19,134.22 is: 28,701.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,915.58 : 59,873.92 = 19,134.22 : x
  2. Step 2: Convert to fraction form
    39,915.58/59,873.92 = 19,134.22/x
  3. Step 3: Cross multiply
    39,915.58x = 59,873.92 × 19,134.22
  4. Step 4: Simplify right side
    39,915.58x = 1,145,640,757.54
  5. Step 5: Solve for x
    x = 1,145,640,757.54/39,915.58
  6. Step 6: Final answer
    x = 28,701.59

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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.