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Finding the Fourth Proportional to 100,265.76, 150,387.12 and 26,399.52

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Solution

The fourth proportional to 100,265.76, 150,387.12 and 26,399.52 is: 39,596.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,265.76 : 150,387.12 = 26,399.52 : x
  2. Step 2: Convert to fraction form
    100,265.76/150,387.12 = 26,399.52/x
  3. Step 3: Cross multiply
    100,265.76x = 150,387.12 × 26,399.52
  4. Step 4: Simplify right side
    100,265.76x = 3,970,147,782.18
  5. Step 5: Solve for x
    x = 3,970,147,782.18/100,265.76
  6. Step 6: Final answer
    x = 39,596.25

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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.