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Finding the Fourth Proportional to 55,880.92, 83,803.46 and 18,432.58

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Solution

The fourth proportional to 55,880.92, 83,803.46 and 18,432.58 is: 27,642.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,880.92 : 83,803.46 = 18,432.58 : x
  2. Step 2: Convert to fraction form
    55,880.92/83,803.46 = 18,432.58/x
  3. Step 3: Cross multiply
    55,880.92x = 83,803.46 × 18,432.58
  4. Step 4: Simplify right side
    55,880.92x = 1,544,713,980.73
  5. Step 5: Solve for x
    x = 1,544,713,980.73/55,880.92
  6. Step 6: Final answer
    x = 27,642.96

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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.