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Finding the Fourth Proportional to 24,649.60, 36,974.40 and 21,879.40

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Solution

The fourth proportional to 24,649.60, 36,974.40 and 21,879.40 is: 32,819.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,649.60 : 36,974.40 = 21,879.40 : x
  2. Step 2: Convert to fraction form
    24,649.60/36,974.40 = 21,879.40/x
  3. Step 3: Cross multiply
    24,649.60x = 36,974.40 × 21,879.40
  4. Step 4: Simplify right side
    24,649.60x = 808,977,687.36
  5. Step 5: Solve for x
    x = 808,977,687.36/24,649.60
  6. Step 6: Final answer
    x = 32,819.10

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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.