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Finding the Fourth Proportional to 47,108.88, 70,661.70 and 12,048.84

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Solution

The fourth proportional to 47,108.88, 70,661.70 and 12,048.84 is: 18,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,108.88 : 70,661.70 = 12,048.84 : x
  2. Step 2: Convert to fraction form
    47,108.88/70,661.70 = 12,048.84/x
  3. Step 3: Cross multiply
    47,108.88x = 70,661.70 × 12,048.84
  4. Step 4: Simplify right side
    47,108.88x = 851,391,517.43
  5. Step 5: Solve for x
    x = 851,391,517.43/47,108.88
  6. Step 6: Final answer
    x = 18,072.85

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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.