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Finding the Fourth Proportional to 2,119.89, 2,925.17 and 1,175.64

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Solution

The fourth proportional to 2,119.89, 2,925.17 and 1,175.64 is: 1,622.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.89 : 2,925.17 = 1,175.64 : x
  2. Step 2: Convert to fraction form
    2,119.89/2,925.17 = 1,175.64/x
  3. Step 3: Cross multiply
    2,119.89x = 2,925.17 × 1,175.64
  4. Step 4: Simplify right side
    2,119.89x = 3,438,934.42
  5. Step 5: Solve for x
    x = 3,438,934.42/2,119.89
  6. Step 6: Final answer
    x = 1,622.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.