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Finding the Fourth Proportional to 57,578.88, 79,459.02 and 33,384.54

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Solution

The fourth proportional to 57,578.88, 79,459.02 and 33,384.54 is: 46,070.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,578.88 : 79,459.02 = 33,384.54 : x
  2. Step 2: Convert to fraction form
    57,578.88/79,459.02 = 33,384.54/x
  3. Step 3: Cross multiply
    57,578.88x = 79,459.02 × 33,384.54
  4. Step 4: Simplify right side
    57,578.88x = 2,652,702,831.55
  5. Step 5: Solve for x
    x = 2,652,702,831.55/57,578.88
  6. Step 6: Final answer
    x = 46,070.76

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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.