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Finding the Fourth Proportional to 63,615.75, 95,423.63 and 19,839.75

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Solution

The fourth proportional to 63,615.75, 95,423.63 and 19,839.75 is: 29,759.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,615.75 : 95,423.63 = 19,839.75 : x
  2. Step 2: Convert to fraction form
    63,615.75/95,423.63 = 19,839.75/x
  3. Step 3: Cross multiply
    63,615.75x = 95,423.63 × 19,839.75
  4. Step 4: Simplify right side
    63,615.75x = 1,893,180,963.29
  5. Step 5: Solve for x
    x = 1,893,180,963.29/63,615.75
  6. Step 6: Final answer
    x = 29,759.63

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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.