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Finding the Third Proportional to 7,725 and 11,248.50

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Solution

The third proportional to 7,725 and 11,248.50 is: 16,379.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725 : 11,248.50 = 11,248.50 : x
  2. Step 2: Convert to fraction form
    7,725/11,248.50 = 11,248.50/x
  3. Step 3: Cross multiply
    7,725x = 11,248.50 × 11,248.50
  4. Step 4: Simplify right side
    7,725x = 126,528,752.25
  5. Step 5: Solve for x
    x = 126,528,752.25/7,725
  6. Step 6: Final answer
    x = 16,379.13

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.