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Finding the Third Proportional to 7,312 and 15,376

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Solution

The third proportional to 7,312 and 15,376 is: 32,333.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312 : 15,376 = 15,376 : x
  2. Step 2: Convert to fraction form
    7,312/15,376 = 15,376/x
  3. Step 3: Cross multiply
    7,312x = 15,376 × 15,376
  4. Step 4: Simplify right side
    7,312x = 236,421,376
  5. Step 5: Solve for x
    x = 236,421,376/7,312
  6. Step 6: Final answer
    x = 32,333.34

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.