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Finding the Fourth Proportional to 34,702.79, 47,889.87 and 18,787.24

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Solution

The fourth proportional to 34,702.79, 47,889.87 and 18,787.24 is: 25,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,702.79 : 47,889.87 = 18,787.24 : x
  2. Step 2: Convert to fraction form
    34,702.79/47,889.87 = 18,787.24/x
  3. Step 3: Cross multiply
    34,702.79x = 47,889.87 × 18,787.24
  4. Step 4: Simplify right side
    34,702.79x = 899,718,481.26
  5. Step 5: Solve for x
    x = 899,718,481.26/34,702.79
  6. Step 6: Final answer
    x = 25,926.40

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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.