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Finding the Fourth Proportional to 21,902.95, 32,865.90 and 10,060.30

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Solution

The fourth proportional to 21,902.95, 32,865.90 and 10,060.30 is: 15,095.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,902.95 : 32,865.90 = 10,060.30 : x
  2. Step 2: Convert to fraction form
    21,902.95/32,865.90 = 10,060.30/x
  3. Step 3: Cross multiply
    21,902.95x = 32,865.90 × 10,060.30
  4. Step 4: Simplify right side
    21,902.95x = 330,640,813.77
  5. Step 5: Solve for x
    x = 330,640,813.77/21,902.95
  6. Step 6: Final answer
    x = 15,095.72

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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.