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Finding the Fourth Proportional to 21,935.60, 32,908.20 and 10,847.60

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Solution

The fourth proportional to 21,935.60, 32,908.20 and 10,847.60 is: 16,273.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935.60 : 32,908.20 = 10,847.60 : x
  2. Step 2: Convert to fraction form
    21,935.60/32,908.20 = 10,847.60/x
  3. Step 3: Cross multiply
    21,935.60x = 32,908.20 × 10,847.60
  4. Step 4: Simplify right side
    21,935.60x = 356,974,990.32
  5. Step 5: Solve for x
    x = 356,974,990.32/21,935.60
  6. Step 6: Final answer
    x = 16,273.77

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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.