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Finding the Fourth Proportional to 3,957.76, 5,936.64 and 1,036.32

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Solution

The fourth proportional to 3,957.76, 5,936.64 and 1,036.32 is: 1,554.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.76 : 5,936.64 = 1,036.32 : x
  2. Step 2: Convert to fraction form
    3,957.76/5,936.64 = 1,036.32/x
  3. Step 3: Cross multiply
    3,957.76x = 5,936.64 × 1,036.32
  4. Step 4: Simplify right side
    3,957.76x = 6,152,229.08
  5. Step 5: Solve for x
    x = 6,152,229.08/3,957.76
  6. Step 6: Final answer
    x = 1,554.47

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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.