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Finding the Fourth Proportional to 2,475.52, 3,712.64 and 935.68

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Solution

The fourth proportional to 2,475.52, 3,712.64 and 935.68 is: 1,403.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.52 : 3,712.64 = 935.68 : x
  2. Step 2: Convert to fraction form
    2,475.52/3,712.64 = 935.68/x
  3. Step 3: Cross multiply
    2,475.52x = 3,712.64 × 935.68
  4. Step 4: Simplify right side
    2,475.52x = 3,473,843.00
  5. Step 5: Solve for x
    x = 3,473,843.00/2,475.52
  6. Step 6: Final answer
    x = 1,403.28

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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.