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Finding the Fourth Proportional to 55,230.36, 82,846.08 and 15,787.20

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Solution

The fourth proportional to 55,230.36, 82,846.08 and 15,787.20 is: 23,680.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,230.36 : 82,846.08 = 15,787.20 : x
  2. Step 2: Convert to fraction form
    55,230.36/82,846.08 = 15,787.20/x
  3. Step 3: Cross multiply
    55,230.36x = 82,846.08 × 15,787.20
  4. Step 4: Simplify right side
    55,230.36x = 1,307,907,634.18
  5. Step 5: Solve for x
    x = 1,307,907,634.18/55,230.36
  6. Step 6: Final answer
    x = 23,680.95

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1.5x scale

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.