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Finding the Fourth Proportional to 30,675.96, 42,332.66 and 17,247.24

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Solution

The fourth proportional to 30,675.96, 42,332.66 and 17,247.24 is: 23,801.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,675.96 : 42,332.66 = 17,247.24 : x
  2. Step 2: Convert to fraction form
    30,675.96/42,332.66 = 17,247.24/x
  3. Step 3: Cross multiply
    30,675.96x = 42,332.66 × 17,247.24
  4. Step 4: Simplify right side
    30,675.96x = 730,121,546.86
  5. Step 5: Solve for x
    x = 730,121,546.86/30,675.96
  6. Step 6: Final answer
    x = 23,801.10

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