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Finding the Third Proportional to 7,080 and 15,576

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Solution

The third proportional to 7,080 and 15,576 is: 34,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080 : 15,576 = 15,576 : x
  2. Step 2: Convert to fraction form
    7,080/15,576 = 15,576/x
  3. Step 3: Cross multiply
    7,080x = 15,576 × 15,576
  4. Step 4: Simplify right side
    7,080x = 242,611,776
  5. Step 5: Solve for x
    x = 242,611,776/7,080
  6. Step 6: Final answer
    x = 34,267.20

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.