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Finding the Fourth Proportional to 1,260.94, 1,887.74 and 932.08

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Solution

The fourth proportional to 1,260.94, 1,887.74 and 932.08 is: 1,395.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.94 : 1,887.74 = 932.08 : x
  2. Step 2: Convert to fraction form
    1,260.94/1,887.74 = 932.08/x
  3. Step 3: Cross multiply
    1,260.94x = 1,887.74 × 932.08
  4. Step 4: Simplify right side
    1,260.94x = 1,759,524.70
  5. Step 5: Solve for x
    x = 1,759,524.70/1,260.94
  6. Step 6: Final answer
    x = 1,395.41

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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.