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Finding the Fourth Proportional to 66,113.28, 91,310.76 and 44,855.64

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Solution

The fourth proportional to 66,113.28, 91,310.76 and 44,855.64 is: 61,951.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,113.28 : 91,310.76 = 44,855.64 : x
  2. Step 2: Convert to fraction form
    66,113.28/91,310.76 = 44,855.64/x
  3. Step 3: Cross multiply
    66,113.28x = 91,310.76 × 44,855.64
  4. Step 4: Simplify right side
    66,113.28x = 4,095,802,578.69
  5. Step 5: Solve for x
    x = 4,095,802,578.69/66,113.28
  6. Step 6: Final answer
    x = 61,951.28

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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.