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Finding the Fourth Proportional to 59,421.75, 81,989.22 and 35,230.35

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Solution

The fourth proportional to 59,421.75, 81,989.22 and 35,230.35 is: 48,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,421.75 : 81,989.22 = 35,230.35 : x
  2. Step 2: Convert to fraction form
    59,421.75/81,989.22 = 35,230.35/x
  3. Step 3: Cross multiply
    59,421.75x = 81,989.22 × 35,230.35
  4. Step 4: Simplify right side
    59,421.75x = 2,888,508,916.83
  5. Step 5: Solve for x
    x = 2,888,508,916.83/59,421.75
  6. Step 6: Final answer
    x = 48,610.30

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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.