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Finding the Third Proportional to 1,249,090 and 2,687,629

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Solution

The third proportional to 1,249,090 and 2,687,629 is: 5,782,889.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,090 : 2,687,629 = 2,687,629 : x
  2. Step 2: Convert to fraction form
    1,249,090/2,687,629 = 2,687,629/x
  3. Step 3: Cross multiply
    1,249,090x = 2,687,629 × 2,687,629
  4. Step 4: Simplify right side
    1,249,090x = 7,223,349,641,641
  5. Step 5: Solve for x
    x = 7,223,349,641,641/1,249,090
  6. Step 6: Final answer
    x = 5,782,889.66

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.