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Finding the Fourth Proportional to 66,227.50, 91,391.18 and 37,549.09

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Solution

The fourth proportional to 66,227.50, 91,391.18 and 37,549.09 is: 51,816.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,227.50 : 91,391.18 = 37,549.09 : x
  2. Step 2: Convert to fraction form
    66,227.50/91,391.18 = 37,549.09/x
  3. Step 3: Cross multiply
    66,227.50x = 91,391.18 × 37,549.09
  4. Step 4: Simplify right side
    66,227.50x = 3,431,655,927.04
  5. Step 5: Solve for x
    x = 3,431,655,927.04/66,227.50
  6. Step 6: Final answer
    x = 51,816.17

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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.