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Finding the Fourth Proportional to 17,840.85, 24,620.39 and 9,882.90

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Solution

The fourth proportional to 17,840.85, 24,620.39 and 9,882.90 is: 13,638.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,840.85 : 24,620.39 = 9,882.90 : x
  2. Step 2: Convert to fraction form
    17,840.85/24,620.39 = 9,882.90/x
  3. Step 3: Cross multiply
    17,840.85x = 24,620.39 × 9,882.90
  4. Step 4: Simplify right side
    17,840.85x = 243,320,852.33
  5. Step 5: Solve for x
    x = 243,320,852.33/17,840.85
  6. Step 6: Final answer
    x = 13,638.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.