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Finding the Fourth Proportional to 7,600.79, 10,488.15 and 4,243.79

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Solution

The fourth proportional to 7,600.79, 10,488.15 and 4,243.79 is: 5,855.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,600.79 : 10,488.15 = 4,243.79 : x
  2. Step 2: Convert to fraction form
    7,600.79/10,488.15 = 4,243.79/x
  3. Step 3: Cross multiply
    7,600.79x = 10,488.15 × 4,243.79
  4. Step 4: Simplify right side
    7,600.79x = 44,509,506.09
  5. Step 5: Solve for x
    x = 44,509,506.09/7,600.79
  6. Step 6: Final answer
    x = 5,855.91

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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.