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Finding the Fourth Proportional to 6,893.68, 9,517.18 and 5,275.54

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Solution

The fourth proportional to 6,893.68, 9,517.18 and 5,275.54 is: 7,283.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,893.68 : 9,517.18 = 5,275.54 : x
  2. Step 2: Convert to fraction form
    6,893.68/9,517.18 = 5,275.54/x
  3. Step 3: Cross multiply
    6,893.68x = 9,517.18 × 5,275.54
  4. Step 4: Simplify right side
    6,893.68x = 50,208,263.78
  5. Step 5: Solve for x
    x = 50,208,263.78/6,893.68
  6. Step 6: Final answer
    x = 7,283.23

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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.