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Finding the Fourth Proportional to 1,126.89, 1,700.43 and 1,081.95

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Solution

The fourth proportional to 1,126.89, 1,700.43 and 1,081.95 is: 1,632.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.89 : 1,700.43 = 1,081.95 : x
  2. Step 2: Convert to fraction form
    1,126.89/1,700.43 = 1,081.95/x
  3. Step 3: Cross multiply
    1,126.89x = 1,700.43 × 1,081.95
  4. Step 4: Simplify right side
    1,126.89x = 1,839,780.24
  5. Step 5: Solve for x
    x = 1,839,780.24/1,126.89
  6. Step 6: Final answer
    x = 1,632.62

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.