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Finding the Fourth Proportional to 66,260.70, 91,440.36 and 36,046.68

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Solution

The fourth proportional to 66,260.70, 91,440.36 and 36,046.68 is: 49,744.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,260.70 : 91,440.36 = 36,046.68 : x
  2. Step 2: Convert to fraction form
    66,260.70/91,440.36 = 36,046.68/x
  3. Step 3: Cross multiply
    66,260.70x = 91,440.36 × 36,046.68
  4. Step 4: Simplify right side
    66,260.70x = 3,296,121,396.00
  5. Step 5: Solve for x
    x = 3,296,121,396.00/66,260.70
  6. Step 6: Final answer
    x = 49,744.74

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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.