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Finding the Fourth Proportional to 40,091.66, 60,119.71 and 21,368.21

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Solution

The fourth proportional to 40,091.66, 60,119.71 and 21,368.21 is: 32,042.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,091.66 : 60,119.71 = 21,368.21 : x
  2. Step 2: Convert to fraction form
    40,091.66/60,119.71 = 21,368.21/x
  3. Step 3: Cross multiply
    40,091.66x = 60,119.71 × 21,368.21
  4. Step 4: Simplify right side
    40,091.66x = 1,284,650,685.30
  5. Step 5: Solve for x
    x = 1,284,650,685.30/40,091.66
  6. Step 6: Final answer
    x = 32,042.84

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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.