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Finding the Fourth Proportional to 85,842.62, 118,463.08 and 47,604.86

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Solution

The fourth proportional to 85,842.62, 118,463.08 and 47,604.86 is: 65,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,842.62 : 118,463.08 = 47,604.86 : x
  2. Step 2: Convert to fraction form
    85,842.62/118,463.08 = 47,604.86/x
  3. Step 3: Cross multiply
    85,842.62x = 118,463.08 × 47,604.86
  4. Step 4: Simplify right side
    85,842.62x = 5,639,418,338.57
  5. Step 5: Solve for x
    x = 5,639,418,338.57/85,842.62
  6. Step 6: Final answer
    x = 65,694.85

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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.