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Finding the Third Proportional to 1,916,497.50 and 4,221,871.50

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Solution

The third proportional to 1,916,497.50 and 4,221,871.50 is: 9,300,402.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,497.50 : 4,221,871.50 = 4,221,871.50 : x
  2. Step 2: Convert to fraction form
    1,916,497.50/4,221,871.50 = 4,221,871.50/x
  3. Step 3: Cross multiply
    1,916,497.50x = 4,221,871.50 × 4,221,871.50
  4. Step 4: Simplify right side
    1,916,497.50x = 17,824,198,962,512.25
  5. Step 5: Solve for x
    x = 17,824,198,962,512.25/1,916,497.50
  6. Step 6: Final answer
    x = 9,300,402.93

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.