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Finding the Fourth Proportional to 11,686.51, 17,529.86 and 3,895.32

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Solution

The fourth proportional to 11,686.51, 17,529.86 and 3,895.32 is: 5,843.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.51 : 17,529.86 = 3,895.32 : x
  2. Step 2: Convert to fraction form
    11,686.51/17,529.86 = 3,895.32/x
  3. Step 3: Cross multiply
    11,686.51x = 17,529.86 × 3,895.32
  4. Step 4: Simplify right side
    11,686.51x = 68,284,414.26
  5. Step 5: Solve for x
    x = 68,284,414.26/11,686.51
  6. Step 6: Final answer
    x = 5,843.01

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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.