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Finding the Fourth Proportional to 57,338.76, 86,022.96 and 21,800.76

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Solution

The fourth proportional to 57,338.76, 86,022.96 and 21,800.76 is: 32,706.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,338.76 : 86,022.96 = 21,800.76 : x
  2. Step 2: Convert to fraction form
    57,338.76/86,022.96 = 21,800.76/x
  3. Step 3: Cross multiply
    57,338.76x = 86,022.96 × 21,800.76
  4. Step 4: Simplify right side
    57,338.76x = 1,875,365,905.45
  5. Step 5: Solve for x
    x = 1,875,365,905.45/57,338.76
  6. Step 6: Final answer
    x = 32,706.77

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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.