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Finding the Fourth Proportional to 37,643.60, 56,443.80 and 11,344.40

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Solution

The fourth proportional to 37,643.60, 56,443.80 and 11,344.40 is: 17,010.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,643.60 : 56,443.80 = 11,344.40 : x
  2. Step 2: Convert to fraction form
    37,643.60/56,443.80 = 11,344.40/x
  3. Step 3: Cross multiply
    37,643.60x = 56,443.80 × 11,344.40
  4. Step 4: Simplify right side
    37,643.60x = 640,321,044.72
  5. Step 5: Solve for x
    x = 640,321,044.72/37,643.60
  6. Step 6: Final answer
    x = 17,010.09

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.