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Finding the Fourth Proportional to 34,702.80, 47,889.81 and 18,787.25

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Solution

The fourth proportional to 34,702.80, 47,889.81 and 18,787.25 is: 25,926.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,702.80 : 47,889.81 = 18,787.25 : x
  2. Step 2: Convert to fraction form
    34,702.80/47,889.81 = 18,787.25/x
  3. Step 3: Cross multiply
    34,702.80x = 47,889.81 × 18,787.25
  4. Step 4: Simplify right side
    34,702.80x = 899,717,832.92
  5. Step 5: Solve for x
    x = 899,717,832.92/34,702.80
  6. Step 6: Final answer
    x = 25,926.38

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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.