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Finding the Third Proportional to 2,480 and 5,335

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Solution

The third proportional to 2,480 and 5,335 is: 11,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480 : 5,335 = 5,335 : x
  2. Step 2: Convert to fraction form
    2,480/5,335 = 5,335/x
  3. Step 3: Cross multiply
    2,480x = 5,335 × 5,335
  4. Step 4: Simplify right side
    2,480x = 28,462,225
  5. Step 5: Solve for x
    x = 28,462,225/2,480
  6. Step 6: Final answer
    x = 11,476.70

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.