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Finding the Third Proportional to 4,618 and 7,340

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Solution

The third proportional to 4,618 and 7,340 is: 11,666.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,618 : 7,340 = 7,340 : x
  2. Step 2: Convert to fraction form
    4,618/7,340 = 7,340/x
  3. Step 3: Cross multiply
    4,618x = 7,340 × 7,340
  4. Step 4: Simplify right side
    4,618x = 53,875,600
  5. Step 5: Solve for x
    x = 53,875,600/4,618
  6. Step 6: Final answer
    x = 11,666.44

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.