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Finding the Fourth Proportional to 17,699.88, 24,412.20 and 10,989.48

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Solution

The fourth proportional to 17,699.88, 24,412.20 and 10,989.48 is: 15,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,699.88 : 24,412.20 = 10,989.48 : x
  2. Step 2: Convert to fraction form
    17,699.88/24,412.20 = 10,989.48/x
  3. Step 3: Cross multiply
    17,699.88x = 24,412.20 × 10,989.48
  4. Step 4: Simplify right side
    17,699.88x = 268,277,383.66
  5. Step 5: Solve for x
    x = 268,277,383.66/17,699.88
  6. Step 6: Final answer
    x = 15,157.02

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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.