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Finding the Fourth Proportional to 11,709.77, 17,560.25 and 3,810.22

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Solution

The fourth proportional to 11,709.77, 17,560.25 and 3,810.22 is: 5,713.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.77 : 17,560.25 = 3,810.22 : x
  2. Step 2: Convert to fraction form
    11,709.77/17,560.25 = 3,810.22/x
  3. Step 3: Cross multiply
    11,709.77x = 17,560.25 × 3,810.22
  4. Step 4: Simplify right side
    11,709.77x = 66,908,352.80
  5. Step 5: Solve for x
    x = 66,908,352.80/11,709.77
  6. Step 6: Final answer
    x = 5,713.89

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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.