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Finding the Third Proportional to 20,598,853.50 and 31,866,859.50

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Solution

The third proportional to 20,598,853.50 and 31,866,859.50 is: 49,298,701.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598,853.50 : 31,866,859.50 = 31,866,859.50 : x
  2. Step 2: Convert to fraction form
    20,598,853.50/31,866,859.50 = 31,866,859.50/x
  3. Step 3: Cross multiply
    20,598,853.50x = 31,866,859.50 × 31,866,859.50
  4. Step 4: Simplify right side
    20,598,853.50x = 1,015,496,734,392,740.25
  5. Step 5: Solve for x
    x = 1,015,496,734,392,740.25/20,598,853.50
  6. Step 6: Final answer
    x = 49,298,701.72

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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.