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Finding the Fourth Proportional to 5,007.69, 6,910.43 and 3,240.32

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Solution

The fourth proportional to 5,007.69, 6,910.43 and 3,240.32 is: 4,471.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.69 : 6,910.43 = 3,240.32 : x
  2. Step 2: Convert to fraction form
    5,007.69/6,910.43 = 3,240.32/x
  3. Step 3: Cross multiply
    5,007.69x = 6,910.43 × 3,240.32
  4. Step 4: Simplify right side
    5,007.69x = 22,391,953.78
  5. Step 5: Solve for x
    x = 22,391,953.78/5,007.69
  6. Step 6: Final answer
    x = 4,471.51

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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.