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Finding the Third Proportional to 7,490 and 16,222

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Solution

The third proportional to 7,490 and 16,222 is: 35,133.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490 : 16,222 = 16,222 : x
  2. Step 2: Convert to fraction form
    7,490/16,222 = 16,222/x
  3. Step 3: Cross multiply
    7,490x = 16,222 × 16,222
  4. Step 4: Simplify right side
    7,490x = 263,153,284
  5. Step 5: Solve for x
    x = 263,153,284/7,490
  6. Step 6: Final answer
    x = 35,133.95

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.