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Finding the Fourth Proportional to 7,046.14, 9,723 and 4,212.95

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Solution

The fourth proportional to 7,046.14, 9,723 and 4,212.95 is: 5,813.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,046.14 : 9,723 = 4,212.95 : x
  2. Step 2: Convert to fraction form
    7,046.14/9,723 = 4,212.95/x
  3. Step 3: Cross multiply
    7,046.14x = 9,723 × 4,212.95
  4. Step 4: Simplify right side
    7,046.14x = 40,962,512.85
  5. Step 5: Solve for x
    x = 40,962,512.85/7,046.14
  6. Step 6: Final answer
    x = 5,813.47

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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.