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Finding the Third Proportional to 5,670 and 7,487

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Solution

The third proportional to 5,670 and 7,487 is: 9,886.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,670 : 7,487 = 7,487 : x
  2. Step 2: Convert to fraction form
    5,670/7,487 = 7,487/x
  3. Step 3: Cross multiply
    5,670x = 7,487 × 7,487
  4. Step 4: Simplify right side
    5,670x = 56,055,169
  5. Step 5: Solve for x
    x = 56,055,169/5,670
  6. Step 6: Final answer
    x = 9,886.27

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.