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Finding the Fourth Proportional to 8,712.81, 13,069.44 and 2,473.02

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Solution

The fourth proportional to 8,712.81, 13,069.44 and 2,473.02 is: 3,709.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.81 : 13,069.44 = 2,473.02 : x
  2. Step 2: Convert to fraction form
    8,712.81/13,069.44 = 2,473.02/x
  3. Step 3: Cross multiply
    8,712.81x = 13,069.44 × 2,473.02
  4. Step 4: Simplify right side
    8,712.81x = 32,320,986.51
  5. Step 5: Solve for x
    x = 32,320,986.51/8,712.81
  6. Step 6: Final answer
    x = 3,709.59

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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.