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Finding the Fourth Proportional to 39,682.56, 59,526.72 and 11,982.72

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Solution

The fourth proportional to 39,682.56, 59,526.72 and 11,982.72 is: 17,974.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,682.56 : 59,526.72 = 11,982.72 : x
  2. Step 2: Convert to fraction form
    39,682.56/59,526.72 = 11,982.72/x
  3. Step 3: Cross multiply
    39,682.56x = 59,526.72 × 11,982.72
  4. Step 4: Simplify right side
    39,682.56x = 713,292,018.28
  5. Step 5: Solve for x
    x = 713,292,018.28/39,682.56
  6. Step 6: Final answer
    x = 17,974.95

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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.