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Finding the Fourth Proportional to 39,601.66, 59,403.24 and 12,947.66

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Solution

The fourth proportional to 39,601.66, 59,403.24 and 12,947.66 is: 19,421.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,601.66 : 59,403.24 = 12,947.66 : x
  2. Step 2: Convert to fraction form
    39,601.66/59,403.24 = 12,947.66/x
  3. Step 3: Cross multiply
    39,601.66x = 59,403.24 × 12,947.66
  4. Step 4: Simplify right side
    39,601.66x = 769,132,954.42
  5. Step 5: Solve for x
    x = 769,132,954.42/39,601.66
  6. Step 6: Final answer
    x = 19,421.74

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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.