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Finding the Fourth Proportional to 15,900.71, 23,851.06 and 4,213.82

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Solution

The fourth proportional to 15,900.71, 23,851.06 and 4,213.82 is: 6,320.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900.71 : 23,851.06 = 4,213.82 : x
  2. Step 2: Convert to fraction form
    15,900.71/23,851.06 = 4,213.82/x
  3. Step 3: Cross multiply
    15,900.71x = 23,851.06 × 4,213.82
  4. Step 4: Simplify right side
    15,900.71x = 100,504,122.74
  5. Step 5: Solve for x
    x = 100,504,122.74/15,900.71
  6. Step 6: Final answer
    x = 6,320.73

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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.