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Finding the Fourth Proportional to 1,757.94, 2,426.07 and 1,128.16

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Solution

The fourth proportional to 1,757.94, 2,426.07 and 1,128.16 is: 1,556.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757.94 : 2,426.07 = 1,128.16 : x
  2. Step 2: Convert to fraction form
    1,757.94/2,426.07 = 1,128.16/x
  3. Step 3: Cross multiply
    1,757.94x = 2,426.07 × 1,128.16
  4. Step 4: Simplify right side
    1,757.94x = 2,736,995.13
  5. Step 5: Solve for x
    x = 2,736,995.13/1,757.94
  6. Step 6: Final answer
    x = 1,556.93

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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.