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Finding the Third Proportional to 1,105,216.50 and 1,661,931

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Solution

The third proportional to 1,105,216.50 and 1,661,931 is: 2,499,071.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,216.50 : 1,661,931 = 1,661,931 : x
  2. Step 2: Convert to fraction form
    1,105,216.50/1,661,931 = 1,661,931/x
  3. Step 3: Cross multiply
    1,105,216.50x = 1,661,931 × 1,661,931
  4. Step 4: Simplify right side
    1,105,216.50x = 2,762,014,648,761
  5. Step 5: Solve for x
    x = 2,762,014,648,761/1,105,216.50
  6. Step 6: Final answer
    x = 2,499,071.13

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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.