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Finding the Third Proportional to 666,621 and 1,572,669.75

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Solution

The third proportional to 666,621 and 1,572,669.75 is: 3,710,189.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,621 : 1,572,669.75 = 1,572,669.75 : x
  2. Step 2: Convert to fraction form
    666,621/1,572,669.75 = 1,572,669.75/x
  3. Step 3: Cross multiply
    666,621x = 1,572,669.75 × 1,572,669.75
  4. Step 4: Simplify right side
    666,621x = 2,473,290,142,565.06
  5. Step 5: Solve for x
    x = 2,473,290,142,565.06/666,621
  6. Step 6: Final answer
    x = 3,710,189.36

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.