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Finding the Fourth Proportional to 38,963.48, 58,403.30 and 16,787.30

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Solution

The fourth proportional to 38,963.48, 58,403.30 and 16,787.30 is: 25,162.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,963.48 : 58,403.30 = 16,787.30 : x
  2. Step 2: Convert to fraction form
    38,963.48/58,403.30 = 16,787.30/x
  3. Step 3: Cross multiply
    38,963.48x = 58,403.30 × 16,787.30
  4. Step 4: Simplify right side
    38,963.48x = 980,433,718.09
  5. Step 5: Solve for x
    x = 980,433,718.09/38,963.48
  6. Step 6: Final answer
    x = 25,162.89

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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.