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Finding the Fourth Proportional to 66,482.99, 91,738.29 and 40,654.52

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Solution

The fourth proportional to 66,482.99, 91,738.29 and 40,654.52 is: 56,098.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,482.99 : 91,738.29 = 40,654.52 : x
  2. Step 2: Convert to fraction form
    66,482.99/91,738.29 = 40,654.52/x
  3. Step 3: Cross multiply
    66,482.99x = 91,738.29 × 40,654.52
  4. Step 4: Simplify right side
    66,482.99x = 3,729,576,145.57
  5. Step 5: Solve for x
    x = 3,729,576,145.57/66,482.99
  6. Step 6: Final answer
    x = 56,098.20

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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.