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Finding the Fourth Proportional to 6,806.90, 9,393.18 and 3,822.86

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Solution

The fourth proportional to 6,806.90, 9,393.18 and 3,822.86 is: 5,275.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,806.90 : 9,393.18 = 3,822.86 : x
  2. Step 2: Convert to fraction form
    6,806.90/9,393.18 = 3,822.86/x
  3. Step 3: Cross multiply
    6,806.90x = 9,393.18 × 3,822.86
  4. Step 4: Simplify right side
    6,806.90x = 35,908,812.09
  5. Step 5: Solve for x
    x = 35,908,812.09/6,806.90
  6. Step 6: Final answer
    x = 5,275.35

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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.