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Finding the Fourth Proportional to 66,707.15, 99,961.70 and 37,084.23

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Solution

The fourth proportional to 66,707.15, 99,961.70 and 37,084.23 is: 55,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,707.15 : 99,961.70 = 37,084.23 : x
  2. Step 2: Convert to fraction form
    66,707.15/99,961.70 = 37,084.23/x
  3. Step 3: Cross multiply
    66,707.15x = 99,961.70 × 37,084.23
  4. Step 4: Simplify right side
    66,707.15x = 3,707,002,488.57
  5. Step 5: Solve for x
    x = 3,707,002,488.57/66,707.15
  6. Step 6: Final answer
    x = 55,571.30

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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.