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Finding the Third Proportional to 187.95 and 432.84

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Solution

The third proportional to 187.95 and 432.84 is: 996.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.95 : 432.84 = 432.84 : x
  2. Step 2: Convert to fraction form
    187.95/432.84 = 432.84/x
  3. Step 3: Cross multiply
    187.95x = 432.84 × 432.84
  4. Step 4: Simplify right side
    187.95x = 187,353.71
  5. Step 5: Solve for x
    x = 187,353.71/187.95
  6. Step 6: Final answer
    x = 996.85

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.