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Finding the Fourth Proportional to 7,046.25, 10,578.51 and 4,721.13

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Solution

The fourth proportional to 7,046.25, 10,578.51 and 4,721.13 is: 7,087.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,046.25 : 10,578.51 = 4,721.13 : x
  2. Step 2: Convert to fraction form
    7,046.25/10,578.51 = 4,721.13/x
  3. Step 3: Cross multiply
    7,046.25x = 10,578.51 × 4,721.13
  4. Step 4: Simplify right side
    7,046.25x = 49,942,520.92
  5. Step 5: Solve for x
    x = 49,942,520.92/7,046.25
  6. Step 6: Final answer
    x = 7,087.82

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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.