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Finding the Fourth Proportional to 21,894.87, 32,845.95 and 7,100.73

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Solution

The fourth proportional to 21,894.87, 32,845.95 and 7,100.73 is: 10,652.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,894.87 : 32,845.95 = 7,100.73 : x
  2. Step 2: Convert to fraction form
    21,894.87/32,845.95 = 7,100.73/x
  3. Step 3: Cross multiply
    21,894.87x = 32,845.95 × 7,100.73
  4. Step 4: Simplify right side
    21,894.87x = 233,230,222.54
  5. Step 5: Solve for x
    x = 233,230,222.54/21,894.87
  6. Step 6: Final answer
    x = 10,652.28

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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.