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Finding the Third Proportional to 18,872,767,473 and 29,303,569,381.50

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Solution

The third proportional to 18,872,767,473 and 29,303,569,381.50 is: 45,499,377,858.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,872,767,473 : 29,303,569,381.50 = 29,303,569,381.50 : x
  2. Step 2: Convert to fraction form
    18,872,767,473/29,303,569,381.50 = 29,303,569,381.50/x
  3. Step 3: Cross multiply
    18,872,767,473x = 29,303,569,381.50 × 29,303,569,381.50
  4. Step 4: Simplify right side
    18,872,767,473x = 858,699,178,496,384,303,104
  5. Step 5: Solve for x
    x = 858,699,178,496,384,303,104/18,872,767,473
  6. Step 6: Final answer
    x = 45,499,377,858.86

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.