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Finding the Third Proportional to 18,637,572 and 39,865,928

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Solution

The third proportional to 18,637,572 and 39,865,928 is: 85,273,565.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637,572 : 39,865,928 = 39,865,928 : x
  2. Step 2: Convert to fraction form
    18,637,572/39,865,928 = 39,865,928/x
  3. Step 3: Cross multiply
    18,637,572x = 39,865,928 × 39,865,928
  4. Step 4: Simplify right side
    18,637,572x = 1,589,292,215,301,184
  5. Step 5: Solve for x
    x = 1,589,292,215,301,184/18,637,572
  6. Step 6: Final answer
    x = 85,273,565.42

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.