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Finding the Fourth Proportional to 34,920.46, 52,380.92 and 9,960.45

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Solution

The fourth proportional to 34,920.46, 52,380.92 and 9,960.45 is: 14,940.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,920.46 : 52,380.92 = 9,960.45 : x
  2. Step 2: Convert to fraction form
    34,920.46/52,380.92 = 9,960.45/x
  3. Step 3: Cross multiply
    34,920.46x = 52,380.92 × 9,960.45
  4. Step 4: Simplify right side
    34,920.46x = 521,737,534.61
  5. Step 5: Solve for x
    x = 521,737,534.61/34,920.46
  6. Step 6: Final answer
    x = 14,940.74

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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.