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Finding the Fourth Proportional to 5,579.99, 7,687.71 and 4,316.69

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Solution

The fourth proportional to 5,579.99, 7,687.71 and 4,316.69 is: 5,947.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.99 : 7,687.71 = 4,316.69 : x
  2. Step 2: Convert to fraction form
    5,579.99/7,687.71 = 4,316.69/x
  3. Step 3: Cross multiply
    5,579.99x = 7,687.71 × 4,316.69
  4. Step 4: Simplify right side
    5,579.99x = 33,185,480.10
  5. Step 5: Solve for x
    x = 33,185,480.10/5,579.99
  6. Step 6: Final answer
    x = 5,947.23

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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.