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Finding the Fourth Proportional to 59,435.43, 89,148.70 and 21,977.99

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Solution

The fourth proportional to 59,435.43, 89,148.70 and 21,977.99 is: 32,965.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,435.43 : 89,148.70 = 21,977.99 : x
  2. Step 2: Convert to fraction form
    59,435.43/89,148.70 = 21,977.99/x
  3. Step 3: Cross multiply
    59,435.43x = 89,148.70 × 21,977.99
  4. Step 4: Simplify right side
    59,435.43x = 1,959,309,237.11
  5. Step 5: Solve for x
    x = 1,959,309,237.11/59,435.43
  6. Step 6: Final answer
    x = 32,965.34

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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.