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Finding the Third Proportional to 38,991,315 and 84,484,413

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Solution

The third proportional to 38,991,315 and 84,484,413 is: 183,056,561.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,991,315 : 84,484,413 = 84,484,413 : x
  2. Step 2: Convert to fraction form
    38,991,315/84,484,413 = 84,484,413/x
  3. Step 3: Cross multiply
    38,991,315x = 84,484,413 × 84,484,413
  4. Step 4: Simplify right side
    38,991,315x = 7,137,616,039,954,569
  5. Step 5: Solve for x
    x = 7,137,616,039,954,569/38,991,315
  6. Step 6: Final answer
    x = 183,056,561.18

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.