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Finding the Third Proportional to 18,866,199 and 29,921,890.50

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Solution

The third proportional to 18,866,199 and 29,921,890.50 is: 47,456,275.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866,199 : 29,921,890.50 = 29,921,890.50 : x
  2. Step 2: Convert to fraction form
    18,866,199/29,921,890.50 = 29,921,890.50/x
  3. Step 3: Cross multiply
    18,866,199x = 29,921,890.50 × 29,921,890.50
  4. Step 4: Simplify right side
    18,866,199x = 895,319,531,093,990.25
  5. Step 5: Solve for x
    x = 895,319,531,093,990.25/18,866,199
  6. Step 6: Final answer
    x = 47,456,275.17

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.