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Finding the Fourth Proportional to 966.65, 1,335.26 and 952.53

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Solution

The fourth proportional to 966.65, 1,335.26 and 952.53 is: 1,315.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.65 : 1,335.26 = 952.53 : x
  2. Step 2: Convert to fraction form
    966.65/1,335.26 = 952.53/x
  3. Step 3: Cross multiply
    966.65x = 1,335.26 × 952.53
  4. Step 4: Simplify right side
    966.65x = 1,271,870.45
  5. Step 5: Solve for x
    x = 1,271,870.45/966.65
  6. Step 6: Final answer
    x = 1,315.76

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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.