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Finding the Fourth Proportional to 47,331.40, 70,910.70 and 28,841.80

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Solution

The fourth proportional to 47,331.40, 70,910.70 and 28,841.80 is: 43,210.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,331.40 : 70,910.70 = 28,841.80 : x
  2. Step 2: Convert to fraction form
    47,331.40/70,910.70 = 28,841.80/x
  3. Step 3: Cross multiply
    47,331.40x = 70,910.70 × 28,841.80
  4. Step 4: Simplify right side
    47,331.40x = 2,045,192,227.26
  5. Step 5: Solve for x
    x = 2,045,192,227.26/47,331.40
  6. Step 6: Final answer
    x = 43,210.05

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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.