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Finding the Fourth Proportional to 8,925.51, 13,409.07 and 7,679.97

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Solution

The fourth proportional to 8,925.51, 13,409.07 and 7,679.97 is: 11,537.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,925.51 : 13,409.07 = 7,679.97 : x
  2. Step 2: Convert to fraction form
    8,925.51/13,409.07 = 7,679.97/x
  3. Step 3: Cross multiply
    8,925.51x = 13,409.07 × 7,679.97
  4. Step 4: Simplify right side
    8,925.51x = 102,981,255.33
  5. Step 5: Solve for x
    x = 102,981,255.33/8,925.51
  6. Step 6: Final answer
    x = 11,537.86

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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.