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Finding the Fourth Proportional to 1,975.76, 2,963.99 and 935.25

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Solution

The fourth proportional to 1,975.76, 2,963.99 and 935.25 is: 1,403.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.76 : 2,963.99 = 935.25 : x
  2. Step 2: Convert to fraction form
    1,975.76/2,963.99 = 935.25/x
  3. Step 3: Cross multiply
    1,975.76x = 2,963.99 × 935.25
  4. Step 4: Simplify right side
    1,975.76x = 2,772,062.87
  5. Step 5: Solve for x
    x = 2,772,062.87/1,975.76
  6. Step 6: Final answer
    x = 1,403.04

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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.