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Finding the Third Proportional to 1,417,990.50 and 2,128,025.25

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Solution

The third proportional to 1,417,990.50 and 2,128,025.25 is: 3,193,597.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417,990.50 : 2,128,025.25 = 2,128,025.25 : x
  2. Step 2: Convert to fraction form
    1,417,990.50/2,128,025.25 = 2,128,025.25/x
  3. Step 3: Cross multiply
    1,417,990.50x = 2,128,025.25 × 2,128,025.25
  4. Step 4: Simplify right side
    1,417,990.50x = 4,528,491,464,637.56
  5. Step 5: Solve for x
    x = 4,528,491,464,637.56/1,417,990.50
  6. Step 6: Final answer
    x = 3,193,597.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.