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Finding the Fourth Proportional to 39,706.84, 59,453.58 and 20,947.84

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Solution

The fourth proportional to 39,706.84, 59,453.58 and 20,947.84 is: 31,365.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,706.84 : 59,453.58 = 20,947.84 : x
  2. Step 2: Convert to fraction form
    39,706.84/59,453.58 = 20,947.84/x
  3. Step 3: Cross multiply
    39,706.84x = 59,453.58 × 20,947.84
  4. Step 4: Simplify right side
    39,706.84x = 1,245,424,081.27
  5. Step 5: Solve for x
    x = 1,245,424,081.27/39,706.84
  6. Step 6: Final answer
    x = 31,365.48

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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.