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Finding the Fourth Proportional to 17,902.78, 26,854.18 and 6,806.91

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Solution

The fourth proportional to 17,902.78, 26,854.18 and 6,806.91 is: 10,210.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,902.78 : 26,854.18 = 6,806.91 : x
  2. Step 2: Convert to fraction form
    17,902.78/26,854.18 = 6,806.91/x
  3. Step 3: Cross multiply
    17,902.78x = 26,854.18 × 6,806.91
  4. Step 4: Simplify right side
    17,902.78x = 182,793,852.11
  5. Step 5: Solve for x
    x = 182,793,852.11/17,902.78
  6. Step 6: Final answer
    x = 10,210.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.