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Finding the Fourth Proportional to 84,893, 127,339.50 and 26,525

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Solution

The fourth proportional to 84,893, 127,339.50 and 26,525 is: 39,787.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,893 : 127,339.50 = 26,525 : x
  2. Step 2: Convert to fraction form
    84,893/127,339.50 = 26,525/x
  3. Step 3: Cross multiply
    84,893x = 127,339.50 × 26,525
  4. Step 4: Simplify right side
    84,893x = 3,377,680,237.50
  5. Step 5: Solve for x
    x = 3,377,680,237.50/84,893
  6. Step 6: Final answer
    x = 39,787.50

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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.