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Finding the Fourth Proportional to 992.68, 1,497.87 and 952.76

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Solution

The fourth proportional to 992.68, 1,497.87 and 952.76 is: 1,437.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    992.68 : 1,497.87 = 952.76 : x
  2. Step 2: Convert to fraction form
    992.68/1,497.87 = 952.76/x
  3. Step 3: Cross multiply
    992.68x = 1,497.87 × 952.76
  4. Step 4: Simplify right side
    992.68x = 1,427,110.62
  5. Step 5: Solve for x
    x = 1,427,110.62/992.68
  6. Step 6: Final answer
    x = 1,437.63

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.