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Finding the Third Proportional to 1,243,698.75 and 1,865,182.50

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Solution

The third proportional to 1,243,698.75 and 1,865,182.50 is: 2,797,225.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,698.75 : 1,865,182.50 = 1,865,182.50 : x
  2. Step 2: Convert to fraction form
    1,243,698.75/1,865,182.50 = 1,865,182.50/x
  3. Step 3: Cross multiply
    1,243,698.75x = 1,865,182.50 × 1,865,182.50
  4. Step 4: Simplify right side
    1,243,698.75x = 3,478,905,758,306.25
  5. Step 5: Solve for x
    x = 3,478,905,758,306.25/1,243,698.75
  6. Step 6: Final answer
    x = 2,797,225.42

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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.