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Finding the Fourth Proportional to 100,636.50, 150,959.88 and 25,757.26

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Solution

The fourth proportional to 100,636.50, 150,959.88 and 25,757.26 is: 38,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,636.50 : 150,959.88 = 25,757.26 : x
  2. Step 2: Convert to fraction form
    100,636.50/150,959.88 = 25,757.26/x
  3. Step 3: Cross multiply
    100,636.50x = 150,959.88 × 25,757.26
  4. Step 4: Simplify right side
    100,636.50x = 3,888,312,878.73
  5. Step 5: Solve for x
    x = 3,888,312,878.73/100,636.50
  6. Step 6: Final answer
    x = 38,637.20

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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.