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Finding the Fourth Proportional to 21,860,439.90, 32,731,677.45 and 21,860,439.90

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Solution

The fourth proportional to 21,860,439.90, 32,731,677.45 and 21,860,439.90 is: 32,731,677.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860,439.90 : 32,731,677.45 = 21,860,439.90 : x
  2. Step 2: Convert to fraction form
    21,860,439.90/32,731,677.45 = 21,860,439.90/x
  3. Step 3: Cross multiply
    21,860,439.90x = 32,731,677.45 × 21,860,439.90
  4. Step 4: Simplify right side
    21,860,439.90x = 715,528,867,721,910.25
  5. Step 5: Solve for x
    x = 715,528,867,721,910.25/21,860,439.90
  6. Step 6: Final answer
    x = 32,731,677.45

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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.