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Finding the Fourth Proportional to 25,649.84, 35,397.24 and 15,047.12

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Solution

The fourth proportional to 25,649.84, 35,397.24 and 15,047.12 is: 20,765.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,649.84 : 35,397.24 = 15,047.12 : x
  2. Step 2: Convert to fraction form
    25,649.84/35,397.24 = 15,047.12/x
  3. Step 3: Cross multiply
    25,649.84x = 35,397.24 × 15,047.12
  4. Step 4: Simplify right side
    25,649.84x = 532,626,517.95
  5. Step 5: Solve for x
    x = 532,626,517.95/25,649.84
  6. Step 6: Final answer
    x = 20,765.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.