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Finding the Fourth Proportional to 100,390.16, 150,584.42 and 25,510.52

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Solution

The fourth proportional to 100,390.16, 150,584.42 and 25,510.52 is: 38,265.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,390.16 : 150,584.42 = 25,510.52 : x
  2. Step 2: Convert to fraction form
    100,390.16/150,584.42 = 25,510.52/x
  3. Step 3: Cross multiply
    100,390.16x = 150,584.42 × 25,510.52
  4. Step 4: Simplify right side
    100,390.16x = 3,841,486,168.95
  5. Step 5: Solve for x
    x = 3,841,486,168.95/100,390.16
  6. Step 6: Final answer
    x = 38,265.57

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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.