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Finding the Fourth Proportional to 66,260.80, 91,438.95 and 36,046.38

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Solution

The fourth proportional to 66,260.80, 91,438.95 and 36,046.38 is: 49,743.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,260.80 : 91,438.95 = 36,046.38 : x
  2. Step 2: Convert to fraction form
    66,260.80/91,438.95 = 36,046.38/x
  3. Step 3: Cross multiply
    66,260.80x = 91,438.95 × 36,046.38
  4. Step 4: Simplify right side
    66,260.80x = 3,296,043,616.57
  5. Step 5: Solve for x
    x = 3,296,043,616.57/66,260.80
  6. Step 6: Final answer
    x = 49,743.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.