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Finding the Fourth Proportional to 43,841.70, 65,762.55 and 12,251.70

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Solution

The fourth proportional to 43,841.70, 65,762.55 and 12,251.70 is: 18,377.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,841.70 : 65,762.55 = 12,251.70 : x
  2. Step 2: Convert to fraction form
    43,841.70/65,762.55 = 12,251.70/x
  3. Step 3: Cross multiply
    43,841.70x = 65,762.55 × 12,251.70
  4. Step 4: Simplify right side
    43,841.70x = 805,703,033.84
  5. Step 5: Solve for x
    x = 805,703,033.84/43,841.70
  6. Step 6: Final answer
    x = 18,377.55

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1.5x scale

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.