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Finding the Fourth Proportional to 66,528.70, 99,793 and 44,385.28

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Solution

The fourth proportional to 66,528.70, 99,793 and 44,385.28 is: 66,577.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528.70 : 99,793 = 44,385.28 : x
  2. Step 2: Convert to fraction form
    66,528.70/99,793 = 44,385.28/x
  3. Step 3: Cross multiply
    66,528.70x = 99,793 × 44,385.28
  4. Step 4: Simplify right side
    66,528.70x = 4,429,340,247.04
  5. Step 5: Solve for x
    x = 4,429,340,247.04/66,528.70
  6. Step 6: Final answer
    x = 66,577.89

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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.