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Finding the Third Proportional to 14,382 and 31,230

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Solution

The third proportional to 14,382 and 31,230 is: 67,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,382 : 31,230 = 31,230 : x
  2. Step 2: Convert to fraction form
    14,382/31,230 = 31,230/x
  3. Step 3: Cross multiply
    14,382x = 31,230 × 31,230
  4. Step 4: Simplify right side
    14,382x = 975,312,900
  5. Step 5: Solve for x
    x = 975,312,900/14,382
  6. Step 6: Final answer
    x = 67,814.83

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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.