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Finding the Third Proportional to 21,708 and 47,572.31

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Solution

The third proportional to 21,708 and 47,572.31 is: 104,253.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708 : 47,572.31 = 47,572.31 : x
  2. Step 2: Convert to fraction form
    21,708/47,572.31 = 47,572.31/x
  3. Step 3: Cross multiply
    21,708x = 47,572.31 × 47,572.31
  4. Step 4: Simplify right side
    21,708x = 2,263,124,916.60
  5. Step 5: Solve for x
    x = 2,263,124,916.60/21,708
  6. Step 6: Final answer
    x = 104,253.04

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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.