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Finding the Fourth Proportional to 11,507.77, 17,261.88 and 3,610.12

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Solution

The fourth proportional to 11,507.77, 17,261.88 and 3,610.12 is: 5,415.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,507.77 : 17,261.88 = 3,610.12 : x
  2. Step 2: Convert to fraction form
    11,507.77/17,261.88 = 3,610.12/x
  3. Step 3: Cross multiply
    11,507.77x = 17,261.88 × 3,610.12
  4. Step 4: Simplify right side
    11,507.77x = 62,317,415.07
  5. Step 5: Solve for x
    x = 62,317,415.07/11,507.77
  6. Step 6: Final answer
    x = 5,415.25

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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.