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Finding the Fourth Proportional to 39,491.95, 59,241.03 and 13,196.80

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Solution

The fourth proportional to 39,491.95, 59,241.03 and 13,196.80 is: 19,796.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,491.95 : 59,241.03 = 13,196.80 : x
  2. Step 2: Convert to fraction form
    39,491.95/59,241.03 = 13,196.80/x
  3. Step 3: Cross multiply
    39,491.95x = 59,241.03 × 13,196.80
  4. Step 4: Simplify right side
    39,491.95x = 781,792,024.70
  5. Step 5: Solve for x
    x = 781,792,024.70/39,491.95
  6. Step 6: Final answer
    x = 19,796.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.