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Finding the Fourth Proportional to 39,207.87, 58,811.81 and 14,243.27

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Solution

The fourth proportional to 39,207.87, 58,811.81 and 14,243.27 is: 21,364.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,207.87 : 58,811.81 = 14,243.27 : x
  2. Step 2: Convert to fraction form
    39,207.87/58,811.81 = 14,243.27/x
  3. Step 3: Cross multiply
    39,207.87x = 58,811.81 × 14,243.27
  4. Step 4: Simplify right side
    39,207.87x = 837,672,123.74
  5. Step 5: Solve for x
    x = 837,672,123.74/39,207.87
  6. Step 6: Final answer
    x = 21,364.90

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Similar ratio
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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.