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Finding the Fourth Proportional to 15,900.80, 23,851.20 and 10,083.20

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Solution

The fourth proportional to 15,900.80, 23,851.20 and 10,083.20 is: 15,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900.80 : 23,851.20 = 10,083.20 : x
  2. Step 2: Convert to fraction form
    15,900.80/23,851.20 = 10,083.20/x
  3. Step 3: Cross multiply
    15,900.80x = 23,851.20 × 10,083.20
  4. Step 4: Simplify right side
    15,900.80x = 240,496,419.84
  5. Step 5: Solve for x
    x = 240,496,419.84/15,900.80
  6. Step 6: Final answer
    x = 15,124.80

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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.