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Finding the Fourth Proportional to 59,420.91, 81,993.06 and 35,538.87

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Solution

The fourth proportional to 59,420.91, 81,993.06 and 35,538.87 is: 49,038.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,420.91 : 81,993.06 = 35,538.87 : x
  2. Step 2: Convert to fraction form
    59,420.91/81,993.06 = 35,538.87/x
  3. Step 3: Cross multiply
    59,420.91x = 81,993.06 × 35,538.87
  4. Step 4: Simplify right side
    59,420.91x = 2,913,940,700.24
  5. Step 5: Solve for x
    x = 2,913,940,700.24/59,420.91
  6. Step 6: Final answer
    x = 49,038.98

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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.