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Finding the Fourth Proportional to 1,016.92, 1,522.92 and 999.10

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Solution

The fourth proportional to 1,016.92, 1,522.92 and 999.10 is: 1,496.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.92 : 1,522.92 = 999.10 : x
  2. Step 2: Convert to fraction form
    1,016.92/1,522.92 = 999.10/x
  3. Step 3: Cross multiply
    1,016.92x = 1,522.92 × 999.10
  4. Step 4: Simplify right side
    1,016.92x = 1,521,549.37
  5. Step 5: Solve for x
    x = 1,521,549.37/1,016.92
  6. Step 6: Final answer
    x = 1,496.23

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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.