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Finding the Third Proportional to 7,130 and 11,202

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Solution

The third proportional to 7,130 and 11,202 is: 17,599.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130 : 11,202 = 11,202 : x
  2. Step 2: Convert to fraction form
    7,130/11,202 = 11,202/x
  3. Step 3: Cross multiply
    7,130x = 11,202 × 11,202
  4. Step 4: Simplify right side
    7,130x = 125,484,804
  5. Step 5: Solve for x
    x = 125,484,804/7,130
  6. Step 6: Final answer
    x = 17,599.55

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.