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Finding the Third Proportional to 2,020,420.13 and 3,136,871.81

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Solution

The third proportional to 2,020,420.13 and 3,136,871.81 is: 4,870,256.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020,420.13 : 3,136,871.81 = 3,136,871.81 : x
  2. Step 2: Convert to fraction form
    2,020,420.13/3,136,871.81 = 3,136,871.81/x
  3. Step 3: Cross multiply
    2,020,420.13x = 3,136,871.81 × 3,136,871.81
  4. Step 4: Simplify right side
    2,020,420.13x = 9,839,964,768,057.04
  5. Step 5: Solve for x
    x = 9,839,964,768,057.04/2,020,420.13
  6. Step 6: Final answer
    x = 4,870,256.76

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.