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Finding the Fourth Proportional to 21,531,769,609.20, 32,297,654,413.80 and 21,531,769,609.20

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Solution

The fourth proportional to 21,531,769,609.20, 32,297,654,413.80 and 21,531,769,609.20 is: 32,297,654,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,531,769,609.20 : 32,297,654,413.80 = 21,531,769,609.20 : x
  2. Step 2: Convert to fraction form
    21,531,769,609.20/32,297,654,413.80 = 21,531,769,609.20/x
  3. Step 3: Cross multiply
    21,531,769,609.20x = 32,297,654,413.80 × 21,531,769,609.20
  4. Step 4: Simplify right side
    21,531,769,609.20x = 695,425,653,755,503,050,752
  5. Step 5: Solve for x
    x = 695,425,653,755,503,050,752/21,531,769,609.20
  6. Step 6: Final answer
    x = 32,297,654,413.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.