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Finding the Fourth Proportional to 23,781,653.70, 35,672,480.55 and 12,425,583.30

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Solution

The fourth proportional to 23,781,653.70, 35,672,480.55 and 12,425,583.30 is: 18,638,374.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,781,653.70 : 35,672,480.55 = 12,425,583.30 : x
  2. Step 2: Convert to fraction form
    23,781,653.70/35,672,480.55 = 12,425,583.30/x
  3. Step 3: Cross multiply
    23,781,653.70x = 35,672,480.55 × 12,425,583.30
  4. Step 4: Simplify right side
    23,781,653.70x = 443,251,378,591,654.81
  5. Step 5: Solve for x
    x = 443,251,378,591,654.81/23,781,653.70
  6. Step 6: Final answer
    x = 18,638,374.95

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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.