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Finding the Fourth Proportional to 11,407.16, 17,108.90 and 4,009.90

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Solution

The fourth proportional to 11,407.16, 17,108.90 and 4,009.90 is: 6,014.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,407.16 : 17,108.90 = 4,009.90 : x
  2. Step 2: Convert to fraction form
    11,407.16/17,108.90 = 4,009.90/x
  3. Step 3: Cross multiply
    11,407.16x = 17,108.90 × 4,009.90
  4. Step 4: Simplify right side
    11,407.16x = 68,604,872.52
  5. Step 5: Solve for x
    x = 68,604,872.52/11,407.16
  6. Step 6: Final answer
    x = 6,014.19

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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.