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Finding the Fourth Proportional to 43,113.90, 64,671.18 and 15,033.90

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Solution

The fourth proportional to 43,113.90, 64,671.18 and 15,033.90 is: 22,550.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,113.90 : 64,671.18 = 15,033.90 : x
  2. Step 2: Convert to fraction form
    43,113.90/64,671.18 = 15,033.90/x
  3. Step 3: Cross multiply
    43,113.90x = 64,671.18 × 15,033.90
  4. Step 4: Simplify right side
    43,113.90x = 972,260,239.14
  5. Step 5: Solve for x
    x = 972,260,239.14/43,113.90
  6. Step 6: Final answer
    x = 22,550.97

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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.