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Finding the Fourth Proportional to 43,806.79, 60,480.15 and 28,507.91

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Solution

The fourth proportional to 43,806.79, 60,480.15 and 28,507.91 is: 39,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,806.79 : 60,480.15 = 28,507.91 : x
  2. Step 2: Convert to fraction form
    43,806.79/60,480.15 = 28,507.91/x
  3. Step 3: Cross multiply
    43,806.79x = 60,480.15 × 28,507.91
  4. Step 4: Simplify right side
    43,806.79x = 1,724,162,672.99
  5. Step 5: Solve for x
    x = 1,724,162,672.99/43,806.79
  6. Step 6: Final answer
    x = 39,358.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.