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Finding the Fourth Proportional to 7,750.74, 10,696.38 and 4,393.68

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Solution

The fourth proportional to 7,750.74, 10,696.38 and 4,393.68 is: 6,063.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,750.74 : 10,696.38 = 4,393.68 : x
  2. Step 2: Convert to fraction form
    7,750.74/10,696.38 = 4,393.68/x
  3. Step 3: Cross multiply
    7,750.74x = 10,696.38 × 4,393.68
  4. Step 4: Simplify right side
    7,750.74x = 46,996,470.88
  5. Step 5: Solve for x
    x = 46,996,470.88/7,750.74
  6. Step 6: Final answer
    x = 6,063.48

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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.