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Finding the Third Proportional to 15,316 and 24,431

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Solution

The third proportional to 15,316 and 24,431 is: 38,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316 : 24,431 = 24,431 : x
  2. Step 2: Convert to fraction form
    15,316/24,431 = 24,431/x
  3. Step 3: Cross multiply
    15,316x = 24,431 × 24,431
  4. Step 4: Simplify right side
    15,316x = 596,873,761
  5. Step 5: Solve for x
    x = 596,873,761/15,316
  6. Step 6: Final answer
    x = 38,970.60

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.