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Finding the Third Proportional to 10,857 and 16,312.50

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Solution

The third proportional to 10,857 and 16,312.50 is: 24,509.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,857 : 16,312.50 = 16,312.50 : x
  2. Step 2: Convert to fraction form
    10,857/16,312.50 = 16,312.50/x
  3. Step 3: Cross multiply
    10,857x = 16,312.50 × 16,312.50
  4. Step 4: Simplify right side
    10,857x = 266,097,656.25
  5. Step 5: Solve for x
    x = 266,097,656.25/10,857
  6. Step 6: Final answer
    x = 24,509.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.