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Finding the Third Proportional to 7,157 and 11,007

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Solution

The third proportional to 7,157 and 11,007 is: 16,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157 : 11,007 = 11,007 : x
  2. Step 2: Convert to fraction form
    7,157/11,007 = 11,007/x
  3. Step 3: Cross multiply
    7,157x = 11,007 × 11,007
  4. Step 4: Simplify right side
    7,157x = 121,154,049
  5. Step 5: Solve for x
    x = 121,154,049/7,157
  6. Step 6: Final answer
    x = 16,928.05

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.