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Finding the Third Proportional to 31,943,472.50 and 69,483,769.13

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Solution

The third proportional to 31,943,472.50 and 69,483,769.13 is: 151,141,807.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,943,472.50 : 69,483,769.13 = 69,483,769.13 : x
  2. Step 2: Convert to fraction form
    31,943,472.50/69,483,769.13 = 69,483,769.13/x
  3. Step 3: Cross multiply
    31,943,472.50x = 69,483,769.13 × 69,483,769.13
  4. Step 4: Simplify right side
    31,943,472.50x = 4,827,994,171,816,303
  5. Step 5: Solve for x
    x = 4,827,994,171,816,303/31,943,472.50
  6. Step 6: Final answer
    x = 151,141,807.51

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.