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Finding the Third Proportional to 7,209 and 15,328.13

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Solution

The third proportional to 7,209 and 15,328.13 is: 32,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209 : 15,328.13 = 15,328.13 : x
  2. Step 2: Convert to fraction form
    7,209/15,328.13 = 15,328.13/x
  3. Step 3: Cross multiply
    7,209x = 15,328.13 × 15,328.13
  4. Step 4: Simplify right side
    7,209x = 234,951,416.02
  5. Step 5: Solve for x
    x = 234,951,416.02/7,209
  6. Step 6: Final answer
    x = 32,591.40

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.