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Finding the Fourth Proportional to 66,230.65, 91,382.74 and 44,759.78

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Solution

The fourth proportional to 66,230.65, 91,382.74 and 44,759.78 is: 61,757.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,230.65 : 91,382.74 = 44,759.78 : x
  2. Step 2: Convert to fraction form
    66,230.65/91,382.74 = 44,759.78/x
  3. Step 3: Cross multiply
    66,230.65x = 91,382.74 × 44,759.78
  4. Step 4: Simplify right side
    66,230.65x = 4,090,271,338.20
  5. Step 5: Solve for x
    x = 4,090,271,338.20/66,230.65
  6. Step 6: Final answer
    x = 61,757.98

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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.