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Finding the Fourth Proportional to 57,578.33, 79,477.98 and 33,712.67

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Solution

The fourth proportional to 57,578.33, 79,477.98 and 33,712.67 is: 46,535.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,578.33 : 79,477.98 = 33,712.67 : x
  2. Step 2: Convert to fraction form
    57,578.33/79,477.98 = 33,712.67/x
  3. Step 3: Cross multiply
    57,578.33x = 79,477.98 × 33,712.67
  4. Step 4: Simplify right side
    57,578.33x = 2,679,414,912.01
  5. Step 5: Solve for x
    x = 2,679,414,912.01/57,578.33
  6. Step 6: Final answer
    x = 46,535.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.