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Finding the Fourth Proportional to 16,646.60, 24,982.19 and 7,881.48

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Solution

The fourth proportional to 16,646.60, 24,982.19 and 7,881.48 is: 11,828.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,646.60 : 24,982.19 = 7,881.48 : x
  2. Step 2: Convert to fraction form
    16,646.60/24,982.19 = 7,881.48/x
  3. Step 3: Cross multiply
    16,646.60x = 24,982.19 × 7,881.48
  4. Step 4: Simplify right side
    16,646.60x = 196,896,591.43
  5. Step 5: Solve for x
    x = 196,896,591.43/16,646.60
  6. Step 6: Final answer
    x = 11,828.04

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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.