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Finding the Fourth Proportional to 34,787.88, 48,007.28 and 19,680.22

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Solution

The fourth proportional to 34,787.88, 48,007.28 and 19,680.22 is: 27,158.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,787.88 : 48,007.28 = 19,680.22 : x
  2. Step 2: Convert to fraction form
    34,787.88/48,007.28 = 19,680.22/x
  3. Step 3: Cross multiply
    34,787.88x = 48,007.28 × 19,680.22
  4. Step 4: Simplify right side
    34,787.88x = 944,793,832.00
  5. Step 5: Solve for x
    x = 944,793,832.00/34,787.88
  6. Step 6: Final answer
    x = 27,158.71

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1.5x scale

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.