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Finding the Fourth Proportional to 57,578.88, 79,459.01 and 33,384.53

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Solution

The fourth proportional to 57,578.88, 79,459.01 and 33,384.53 is: 46,070.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,578.88 : 79,459.01 = 33,384.53 : x
  2. Step 2: Convert to fraction form
    57,578.88/79,459.01 = 33,384.53/x
  3. Step 3: Cross multiply
    57,578.88x = 79,459.01 × 33,384.53
  4. Step 4: Simplify right side
    57,578.88x = 2,652,701,703.12
  5. Step 5: Solve for x
    x = 2,652,701,703.12/57,578.88
  6. Step 6: Final answer
    x = 46,070.74

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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.