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Finding the Fourth Proportional to 39,682.79, 59,523.54 and 15,989.77

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Solution

The fourth proportional to 39,682.79, 59,523.54 and 15,989.77 is: 23,984.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,682.79 : 59,523.54 = 15,989.77 : x
  2. Step 2: Convert to fraction form
    39,682.79/59,523.54 = 15,989.77/x
  3. Step 3: Cross multiply
    39,682.79x = 59,523.54 × 15,989.77
  4. Step 4: Simplify right side
    39,682.79x = 951,767,565.38
  5. Step 5: Solve for x
    x = 951,767,565.38/39,682.79
  6. Step 6: Final answer
    x = 23,984.39

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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.