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Finding the Fourth Proportional to 2,119, 3,176.34 and 887.08

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Solution

The fourth proportional to 2,119, 3,176.34 and 887.08 is: 1,329.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119 : 3,176.34 = 887.08 : x
  2. Step 2: Convert to fraction form
    2,119/3,176.34 = 887.08/x
  3. Step 3: Cross multiply
    2,119x = 3,176.34 × 887.08
  4. Step 4: Simplify right side
    2,119x = 2,817,667.69
  5. Step 5: Solve for x
    x = 2,817,667.69/2,119
  6. Step 6: Final answer
    x = 1,329.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.