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Finding the Fourth Proportional to 10,945.65, 15,104.77 and 6,696.39

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Solution

The fourth proportional to 10,945.65, 15,104.77 and 6,696.39 is: 9,240.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.65 : 15,104.77 = 6,696.39 : x
  2. Step 2: Convert to fraction form
    10,945.65/15,104.77 = 6,696.39/x
  3. Step 3: Cross multiply
    10,945.65x = 15,104.77 × 6,696.39
  4. Step 4: Simplify right side
    10,945.65x = 101,147,430.78
  5. Step 5: Solve for x
    x = 101,147,430.78/10,945.65
  6. Step 6: Final answer
    x = 9,240.88

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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.