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Finding the Third Proportional to 2,912 and 4,332

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Solution

The third proportional to 2,912 and 4,332 is: 6,444.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912 : 4,332 = 4,332 : x
  2. Step 2: Convert to fraction form
    2,912/4,332 = 4,332/x
  3. Step 3: Cross multiply
    2,912x = 4,332 × 4,332
  4. Step 4: Simplify right side
    2,912x = 18,766,224
  5. Step 5: Solve for x
    x = 18,766,224/2,912
  6. Step 6: Final answer
    x = 6,444.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.