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Finding the Fourth Proportional to 11,657.00, 17,486.10 and 5,811.63

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Solution

The fourth proportional to 11,657.00, 17,486.10 and 5,811.63 is: 8,717.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,657.00 : 17,486.10 = 5,811.63 : x
  2. Step 2: Convert to fraction form
    11,657.00/17,486.10 = 5,811.63/x
  3. Step 3: Cross multiply
    11,657.00x = 17,486.10 × 5,811.63
  4. Step 4: Simplify right side
    11,657.00x = 101,622,743.34
  5. Step 5: Solve for x
    x = 101,622,743.34/11,657.00
  6. Step 6: Final answer
    x = 8,717.75

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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.