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Finding the Third Proportional to 1,581,421.50 and 2,409,351.75

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Solution

The third proportional to 1,581,421.50 and 2,409,351.75 is: 3,670,732.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,421.50 : 2,409,351.75 = 2,409,351.75 : x
  2. Step 2: Convert to fraction form
    1,581,421.50/2,409,351.75 = 2,409,351.75/x
  3. Step 3: Cross multiply
    1,581,421.50x = 2,409,351.75 × 2,409,351.75
  4. Step 4: Simplify right side
    1,581,421.50x = 5,804,975,855,228.06
  5. Step 5: Solve for x
    x = 5,804,975,855,228.06/1,581,421.50
  6. Step 6: Final answer
    x = 3,670,732.85

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.