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Finding the Third Proportional to 10,346 and 15,987

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Solution

The third proportional to 10,346 and 15,987 is: 24,703.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,346 : 15,987 = 15,987 : x
  2. Step 2: Convert to fraction form
    10,346/15,987 = 15,987/x
  3. Step 3: Cross multiply
    10,346x = 15,987 × 15,987
  4. Step 4: Simplify right side
    10,346x = 255,584,169
  5. Step 5: Solve for x
    x = 255,584,169/10,346
  6. Step 6: Final answer
    x = 24,703.67

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.