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Finding the Fourth Proportional to 967.84, 1,335.36 and 925.36

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Solution

The fourth proportional to 967.84, 1,335.36 and 925.36 is: 1,276.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.84 : 1,335.36 = 925.36 : x
  2. Step 2: Convert to fraction form
    967.84/1,335.36 = 925.36/x
  3. Step 3: Cross multiply
    967.84x = 1,335.36 × 925.36
  4. Step 4: Simplify right side
    967.84x = 1,235,688.73
  5. Step 5: Solve for x
    x = 1,235,688.73/967.84
  6. Step 6: Final answer
    x = 1,276.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.