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Finding the Fourth Proportional to 31,915,374.60, 47,879,787.60 and 10,348,294.80

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Solution

The fourth proportional to 31,915,374.60, 47,879,787.60 and 10,348,294.80 is: 15,524,622.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,915,374.60 : 47,879,787.60 = 10,348,294.80 : x
  2. Step 2: Convert to fraction form
    31,915,374.60/47,879,787.60 = 10,348,294.80/x
  3. Step 3: Cross multiply
    31,915,374.60x = 47,879,787.60 × 10,348,294.80
  4. Step 4: Simplify right side
    31,915,374.60x = 495,474,157,046,184.50
  5. Step 5: Solve for x
    x = 495,474,157,046,184.50/31,915,374.60
  6. Step 6: Final answer
    x = 15,524,622.95

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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.