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Finding the Fourth Proportional to 17,402.90, 26,107.91 and 7,407.63

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Solution

The fourth proportional to 17,402.90, 26,107.91 and 7,407.63 is: 11,112.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,402.90 : 26,107.91 = 7,407.63 : x
  2. Step 2: Convert to fraction form
    17,402.90/26,107.91 = 7,407.63/x
  3. Step 3: Cross multiply
    17,402.90x = 26,107.91 × 7,407.63
  4. Step 4: Simplify right side
    17,402.90x = 193,397,737.35
  5. Step 5: Solve for x
    x = 193,397,737.35/17,402.90
  6. Step 6: Final answer
    x = 11,112.96

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Similar ratio
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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.