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Finding the Fourth Proportional to 16,862.73, 25,299.15 and 7,984.83

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Solution

The fourth proportional to 16,862.73, 25,299.15 and 7,984.83 is: 11,979.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,862.73 : 25,299.15 = 7,984.83 : x
  2. Step 2: Convert to fraction form
    16,862.73/25,299.15 = 7,984.83/x
  3. Step 3: Cross multiply
    16,862.73x = 25,299.15 × 7,984.83
  4. Step 4: Simplify right side
    16,862.73x = 202,009,411.89
  5. Step 5: Solve for x
    x = 202,009,411.89/16,862.73
  6. Step 6: Final answer
    x = 11,979.64

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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.