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Finding the Fourth Proportional to 47,612.54, 71,415.98 and 21,310.22

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Solution

The fourth proportional to 47,612.54, 71,415.98 and 21,310.22 is: 31,964.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,612.54 : 71,415.98 = 21,310.22 : x
  2. Step 2: Convert to fraction form
    47,612.54/71,415.98 = 21,310.22/x
  3. Step 3: Cross multiply
    47,612.54x = 71,415.98 × 21,310.22
  4. Step 4: Simplify right side
    47,612.54x = 1,521,890,397.22
  5. Step 5: Solve for x
    x = 1,521,890,397.22/47,612.54
  6. Step 6: Final answer
    x = 31,964.06

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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.