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Finding the Third Proportional to 4,580 and 7,482

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Solution

The third proportional to 4,580 and 7,482 is: 12,222.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,580 : 7,482 = 7,482 : x
  2. Step 2: Convert to fraction form
    4,580/7,482 = 7,482/x
  3. Step 3: Cross multiply
    4,580x = 7,482 × 7,482
  4. Step 4: Simplify right side
    4,580x = 55,980,324
  5. Step 5: Solve for x
    x = 55,980,324/4,580
  6. Step 6: Final answer
    x = 12,222.78

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.