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Finding the Third Proportional to 9,887 and 15,710

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Solution

The third proportional to 9,887 and 15,710 is: 24,962.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,887 : 15,710 = 15,710 : x
  2. Step 2: Convert to fraction form
    9,887/15,710 = 15,710/x
  3. Step 3: Cross multiply
    9,887x = 15,710 × 15,710
  4. Step 4: Simplify right side
    9,887x = 246,804,100
  5. Step 5: Solve for x
    x = 246,804,100/9,887
  6. Step 6: Final answer
    x = 24,962.49

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.