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Finding the Fourth Proportional to 44,689.60, 67,029.60 and 11,857.60

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Solution

The fourth proportional to 44,689.60, 67,029.60 and 11,857.60 is: 17,785.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,689.60 : 67,029.60 = 11,857.60 : x
  2. Step 2: Convert to fraction form
    44,689.60/67,029.60 = 11,857.60/x
  3. Step 3: Cross multiply
    44,689.60x = 67,029.60 × 11,857.60
  4. Step 4: Simplify right side
    44,689.60x = 794,810,184.96
  5. Step 5: Solve for x
    x = 794,810,184.96/44,689.60
  6. Step 6: Final answer
    x = 17,785.13

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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.