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Finding the Fourth Proportional to 8,716.61, 13,074.62 and 2,873.07

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Solution

The fourth proportional to 8,716.61, 13,074.62 and 2,873.07 is: 4,309.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.61 : 13,074.62 = 2,873.07 : x
  2. Step 2: Convert to fraction form
    8,716.61/13,074.62 = 2,873.07/x
  3. Step 3: Cross multiply
    8,716.61x = 13,074.62 × 2,873.07
  4. Step 4: Simplify right side
    8,716.61x = 37,564,284.12
  5. Step 5: Solve for x
    x = 37,564,284.12/8,716.61
  6. Step 6: Final answer
    x = 4,309.50

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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.