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Finding the Fourth Proportional to 12,764.18, 17,613.42 and 7,098.68

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Solution

The fourth proportional to 12,764.18, 17,613.42 and 7,098.68 is: 9,795.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,764.18 : 17,613.42 = 7,098.68 : x
  2. Step 2: Convert to fraction form
    12,764.18/17,613.42 = 7,098.68/x
  3. Step 3: Cross multiply
    12,764.18x = 17,613.42 × 7,098.68
  4. Step 4: Simplify right side
    12,764.18x = 125,032,032.29
  5. Step 5: Solve for x
    x = 125,032,032.29/12,764.18
  6. Step 6: Final answer
    x = 9,795.54

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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.