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Finding the Fourth Proportional to 58,310.30, 87,472.56 and 20,874.32

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Solution

The fourth proportional to 58,310.30, 87,472.56 and 20,874.32 is: 31,314.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,310.30 : 87,472.56 = 20,874.32 : x
  2. Step 2: Convert to fraction form
    58,310.30/87,472.56 = 20,874.32/x
  3. Step 3: Cross multiply
    58,310.30x = 87,472.56 × 20,874.32
  4. Step 4: Simplify right side
    58,310.30x = 1,825,930,208.66
  5. Step 5: Solve for x
    x = 1,825,930,208.66/58,310.30
  6. Step 6: Final answer
    x = 31,314.03

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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.