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Finding the Third Proportional to 15,411 and 31,552

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Solution

The third proportional to 15,411 and 31,552 is: 64,598.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411 : 31,552 = 31,552 : x
  2. Step 2: Convert to fraction form
    15,411/31,552 = 31,552/x
  3. Step 3: Cross multiply
    15,411x = 31,552 × 31,552
  4. Step 4: Simplify right side
    15,411x = 995,528,704
  5. Step 5: Solve for x
    x = 995,528,704/15,411
  6. Step 6: Final answer
    x = 64,598.58

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.