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Finding the Third Proportional to 11,343 and 12,985.50

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Solution

The third proportional to 11,343 and 12,985.50 is: 14,865.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,343 : 12,985.50 = 12,985.50 : x
  2. Step 2: Convert to fraction form
    11,343/12,985.50 = 12,985.50/x
  3. Step 3: Cross multiply
    11,343x = 12,985.50 × 12,985.50
  4. Step 4: Simplify right side
    11,343x = 168,623,210.25
  5. Step 5: Solve for x
    x = 168,623,210.25/11,343
  6. Step 6: Final answer
    x = 14,865.84

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.