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Finding the Fourth Proportional to 31,469.56, 47,225.88 and 13,001.56

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Solution

The fourth proportional to 31,469.56, 47,225.88 and 13,001.56 is: 19,511.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.56 : 47,225.88 = 13,001.56 : x
  2. Step 2: Convert to fraction form
    31,469.56/47,225.88 = 13,001.56/x
  3. Step 3: Cross multiply
    31,469.56x = 47,225.88 × 13,001.56
  4. Step 4: Simplify right side
    31,469.56x = 614,010,112.37
  5. Step 5: Solve for x
    x = 614,010,112.37/31,469.56
  6. Step 6: Final answer
    x = 19,511.24

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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.