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Finding the Third Proportional to 1,242,639 and 2,666,526

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Solution

The third proportional to 1,242,639 and 2,666,526 is: 5,721,984.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,639 : 2,666,526 = 2,666,526 : x
  2. Step 2: Convert to fraction form
    1,242,639/2,666,526 = 2,666,526/x
  3. Step 3: Cross multiply
    1,242,639x = 2,666,526 × 2,666,526
  4. Step 4: Simplify right side
    1,242,639x = 7,110,360,908,676
  5. Step 5: Solve for x
    x = 7,110,360,908,676/1,242,639
  6. Step 6: Final answer
    x = 5,721,984.35

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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.