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Finding the Fourth Proportional to 39,162.96, 58,737.96 and 12,867.93

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Solution

The fourth proportional to 39,162.96, 58,737.96 and 12,867.93 is: 19,299.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,162.96 : 58,737.96 = 12,867.93 : x
  2. Step 2: Convert to fraction form
    39,162.96/58,737.96 = 12,867.93/x
  3. Step 3: Cross multiply
    39,162.96x = 58,737.96 × 12,867.93
  4. Step 4: Simplify right side
    39,162.96x = 755,835,957.62
  5. Step 5: Solve for x
    x = 755,835,957.62/39,162.96
  6. Step 6: Final answer
    x = 19,299.77

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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.