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Finding the Fourth Proportional to 40,405.88, 55,756.54 and 23,404.69

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Solution

The fourth proportional to 40,405.88, 55,756.54 and 23,404.69 is: 32,296.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,405.88 : 55,756.54 = 23,404.69 : x
  2. Step 2: Convert to fraction form
    40,405.88/55,756.54 = 23,404.69/x
  3. Step 3: Cross multiply
    40,405.88x = 55,756.54 × 23,404.69
  4. Step 4: Simplify right side
    40,405.88x = 1,304,964,534.17
  5. Step 5: Solve for x
    x = 1,304,964,534.17/40,405.88
  6. Step 6: Final answer
    x = 32,296.40

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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.