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Finding the Fourth Proportional to 59,889.61, 82,606.21 and 48,559.58

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Solution

The fourth proportional to 59,889.61, 82,606.21 and 48,559.58 is: 66,978.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,889.61 : 82,606.21 = 48,559.58 : x
  2. Step 2: Convert to fraction form
    59,889.61/82,606.21 = 48,559.58/x
  3. Step 3: Cross multiply
    59,889.61x = 82,606.21 × 48,559.58
  4. Step 4: Simplify right side
    59,889.61x = 4,011,322,862.99
  5. Step 5: Solve for x
    x = 4,011,322,862.99/59,889.61
  6. Step 6: Final answer
    x = 66,978.61

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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.