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Finding the Fourth Proportional to 34,902.60, 52,353.90 and 9,940.20

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Solution

The fourth proportional to 34,902.60, 52,353.90 and 9,940.20 is: 14,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,902.60 : 52,353.90 = 9,940.20 : x
  2. Step 2: Convert to fraction form
    34,902.60/52,353.90 = 9,940.20/x
  3. Step 3: Cross multiply
    34,902.60x = 52,353.90 × 9,940.20
  4. Step 4: Simplify right side
    34,902.60x = 520,408,236.78
  5. Step 5: Solve for x
    x = 520,408,236.78/34,902.60
  6. Step 6: Final answer
    x = 14,910.30

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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.