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Finding the Fourth Proportional to 5,309.99, 7,963.91 and 5,046.53

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Solution

The fourth proportional to 5,309.99, 7,963.91 and 5,046.53 is: 7,568.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.99 : 7,963.91 = 5,046.53 : x
  2. Step 2: Convert to fraction form
    5,309.99/7,963.91 = 5,046.53/x
  3. Step 3: Cross multiply
    5,309.99x = 7,963.91 × 5,046.53
  4. Step 4: Simplify right side
    5,309.99x = 40,190,045.68
  5. Step 5: Solve for x
    x = 40,190,045.68/5,309.99
  6. Step 6: Final answer
    x = 7,568.77

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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.