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Finding the Fourth Proportional to 57,983.37, 79,417.49 and 54,578.94

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Solution

The fourth proportional to 57,983.37, 79,417.49 and 54,578.94 is: 74,754.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,983.37 : 79,417.49 = 54,578.94 : x
  2. Step 2: Convert to fraction form
    57,983.37/79,417.49 = 54,578.94/x
  3. Step 3: Cross multiply
    57,983.37x = 79,417.49 × 54,578.94
  4. Step 4: Simplify right side
    57,983.37x = 4,334,522,421.66
  5. Step 5: Solve for x
    x = 4,334,522,421.66/57,983.37
  6. Step 6: Final answer
    x = 74,754.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.