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Finding the Third Proportional to 7,080 and 10,316

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Solution

The third proportional to 7,080 and 10,316 is: 15,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080 : 10,316 = 10,316 : x
  2. Step 2: Convert to fraction form
    7,080/10,316 = 10,316/x
  3. Step 3: Cross multiply
    7,080x = 10,316 × 10,316
  4. Step 4: Simplify right side
    7,080x = 106,419,856
  5. Step 5: Solve for x
    x = 106,419,856/7,080
  6. Step 6: Final answer
    x = 15,031.05

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.