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Finding the Third Proportional to 7,160 and 9,580

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Solution

The third proportional to 7,160 and 9,580 is: 12,817.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160 : 9,580 = 9,580 : x
  2. Step 2: Convert to fraction form
    7,160/9,580 = 9,580/x
  3. Step 3: Cross multiply
    7,160x = 9,580 × 9,580
  4. Step 4: Simplify right side
    7,160x = 91,776,400
  5. Step 5: Solve for x
    x = 91,776,400/7,160
  6. Step 6: Final answer
    x = 12,817.93

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.