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Finding the Fourth Proportional to 6,799.76, 9,386.01 and 4,286.11

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Solution

The fourth proportional to 6,799.76, 9,386.01 and 4,286.11 is: 5,916.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,799.76 : 9,386.01 = 4,286.11 : x
  2. Step 2: Convert to fraction form
    6,799.76/9,386.01 = 4,286.11/x
  3. Step 3: Cross multiply
    6,799.76x = 9,386.01 × 4,286.11
  4. Step 4: Simplify right side
    6,799.76x = 40,229,471.32
  5. Step 5: Solve for x
    x = 40,229,471.32/6,799.76
  6. Step 6: Final answer
    x = 5,916.31

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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.