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Finding the Fourth Proportional to 39,393.72, 59,091.09 and 13,098.46

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Solution

The fourth proportional to 39,393.72, 59,091.09 and 13,098.46 is: 19,647.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,393.72 : 59,091.09 = 13,098.46 : x
  2. Step 2: Convert to fraction form
    39,393.72/59,091.09 = 13,098.46/x
  3. Step 3: Cross multiply
    39,393.72x = 59,091.09 × 13,098.46
  4. Step 4: Simplify right side
    39,393.72x = 774,002,094.15
  5. Step 5: Solve for x
    x = 774,002,094.15/39,393.72
  6. Step 6: Final answer
    x = 19,647.86

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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.