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Finding the Fourth Proportional to 11,656.85, 17,490.43 and 6,108.87

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Solution

The fourth proportional to 11,656.85, 17,490.43 and 6,108.87 is: 9,166.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,656.85 : 17,490.43 = 6,108.87 : x
  2. Step 2: Convert to fraction form
    11,656.85/17,490.43 = 6,108.87/x
  3. Step 3: Cross multiply
    11,656.85x = 17,490.43 × 6,108.87
  4. Step 4: Simplify right side
    11,656.85x = 106,846,737.96
  5. Step 5: Solve for x
    x = 106,846,737.96/11,656.85
  6. Step 6: Final answer
    x = 9,166.01

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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.