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Finding the Fourth Proportional to 29,988.48, 41,390.40 and 17,412.48

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Solution

The fourth proportional to 29,988.48, 41,390.40 and 17,412.48 is: 24,032.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,988.48 : 41,390.40 = 17,412.48 : x
  2. Step 2: Convert to fraction form
    29,988.48/41,390.40 = 17,412.48/x
  3. Step 3: Cross multiply
    29,988.48x = 41,390.40 × 17,412.48
  4. Step 4: Simplify right side
    29,988.48x = 720,709,512.19
  5. Step 5: Solve for x
    x = 720,709,512.19/29,988.48
  6. Step 6: Final answer
    x = 24,032.88

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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.