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Finding the Fourth Proportional to 7,668.60, 10,579.89 and 5,017.56

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Solution

The fourth proportional to 7,668.60, 10,579.89 and 5,017.56 is: 6,922.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,668.60 : 10,579.89 = 5,017.56 : x
  2. Step 2: Convert to fraction form
    7,668.60/10,579.89 = 5,017.56/x
  3. Step 3: Cross multiply
    7,668.60x = 10,579.89 × 5,017.56
  4. Step 4: Simplify right side
    7,668.60x = 53,085,232.87
  5. Step 5: Solve for x
    x = 53,085,232.87/7,668.60
  6. Step 6: Final answer
    x = 6,922.42

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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.