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Finding the Third Proportional to 1,986,646.50 and 3,075,468.75

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Solution

The third proportional to 1,986,646.50 and 3,075,468.75 is: 4,761,042.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,646.50 : 3,075,468.75 = 3,075,468.75 : x
  2. Step 2: Convert to fraction form
    1,986,646.50/3,075,468.75 = 3,075,468.75/x
  3. Step 3: Cross multiply
    1,986,646.50x = 3,075,468.75 × 3,075,468.75
  4. Step 4: Simplify right side
    1,986,646.50x = 9,458,508,032,226.56
  5. Step 5: Solve for x
    x = 9,458,508,032,226.56/1,986,646.50
  6. Step 6: Final answer
    x = 4,761,042.31

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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.