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Finding the Fourth Proportional to 25,652.84, 35,400.65 and 15,040.42

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Solution

The fourth proportional to 25,652.84, 35,400.65 and 15,040.42 is: 20,755.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,652.84 : 35,400.65 = 15,040.42 : x
  2. Step 2: Convert to fraction form
    25,652.84/35,400.65 = 15,040.42/x
  3. Step 3: Cross multiply
    25,652.84x = 35,400.65 × 15,040.42
  4. Step 4: Simplify right side
    25,652.84x = 532,440,480.57
  5. Step 5: Solve for x
    x = 532,440,480.57/25,652.84
  6. Step 6: Final answer
    x = 20,755.62

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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.