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Finding the Fourth Proportional to 59,038.26, 81,408.48 and 39,884.82

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Solution

The fourth proportional to 59,038.26, 81,408.48 and 39,884.82 is: 54,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,038.26 : 81,408.48 = 39,884.82 : x
  2. Step 2: Convert to fraction form
    59,038.26/81,408.48 = 39,884.82/x
  3. Step 3: Cross multiply
    59,038.26x = 81,408.48 × 39,884.82
  4. Step 4: Simplify right side
    59,038.26x = 3,246,962,571.27
  5. Step 5: Solve for x
    x = 3,246,962,571.27/59,038.26
  6. Step 6: Final answer
    x = 54,997.60

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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.