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Finding the Third Proportional to 14,266 and 31,220

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Solution

The third proportional to 14,266 and 31,220 is: 68,322.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,266 : 31,220 = 31,220 : x
  2. Step 2: Convert to fraction form
    14,266/31,220 = 31,220/x
  3. Step 3: Cross multiply
    14,266x = 31,220 × 31,220
  4. Step 4: Simplify right side
    14,266x = 974,688,400
  5. Step 5: Solve for x
    x = 974,688,400/14,266
  6. Step 6: Final answer
    x = 68,322.47

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.