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Finding the Third Proportional to 9,681 and 14,722.50

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Solution

The third proportional to 9,681 and 14,722.50 is: 22,389.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,681 : 14,722.50 = 14,722.50 : x
  2. Step 2: Convert to fraction form
    9,681/14,722.50 = 14,722.50/x
  3. Step 3: Cross multiply
    9,681x = 14,722.50 × 14,722.50
  4. Step 4: Simplify right side
    9,681x = 216,752,006.25
  5. Step 5: Solve for x
    x = 216,752,006.25/9,681
  6. Step 6: Final answer
    x = 22,389.42

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.