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Finding the Fourth Proportional to 59,407.70, 89,039.55 and 34,399.70

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Solution

The fourth proportional to 59,407.70, 89,039.55 and 34,399.70 is: 51,557.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,407.70 : 89,039.55 = 34,399.70 : x
  2. Step 2: Convert to fraction form
    59,407.70/89,039.55 = 34,399.70/x
  3. Step 3: Cross multiply
    59,407.70x = 89,039.55 × 34,399.70
  4. Step 4: Simplify right side
    59,407.70x = 3,062,933,808.14
  5. Step 5: Solve for x
    x = 3,062,933,808.14/59,407.70
  6. Step 6: Final answer
    x = 51,557.86

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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.