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Finding the Third Proportional to 2,421 and 4,001.06

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Solution

The third proportional to 2,421 and 4,001.06 is: 6,612.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421 : 4,001.06 = 4,001.06 : x
  2. Step 2: Convert to fraction form
    2,421/4,001.06 = 4,001.06/x
  3. Step 3: Cross multiply
    2,421x = 4,001.06 × 4,001.06
  4. Step 4: Simplify right side
    2,421x = 16,008,501.13
  5. Step 5: Solve for x
    x = 16,008,501.13/2,421
  6. Step 6: Final answer
    x = 6,612.35

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.