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Finding the Fourth Proportional to 44,286.30, 66,429.45 and 39,912.30

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Solution

The fourth proportional to 44,286.30, 66,429.45 and 39,912.30 is: 59,868.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,286.30 : 66,429.45 = 39,912.30 : x
  2. Step 2: Convert to fraction form
    44,286.30/66,429.45 = 39,912.30/x
  3. Step 3: Cross multiply
    44,286.30x = 66,429.45 × 39,912.30
  4. Step 4: Simplify right side
    44,286.30x = 2,651,352,137.24
  5. Step 5: Solve for x
    x = 2,651,352,137.24/44,286.30
  6. Step 6: Final answer
    x = 59,868.45

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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.