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Finding the Fourth Proportional to 39,889.60, 59,805.60 and 22,364.80

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Solution

The fourth proportional to 39,889.60, 59,805.60 and 22,364.80 is: 33,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,889.60 : 59,805.60 = 22,364.80 : x
  2. Step 2: Convert to fraction form
    39,889.60/59,805.60 = 22,364.80/x
  3. Step 3: Cross multiply
    39,889.60x = 59,805.60 × 22,364.80
  4. Step 4: Simplify right side
    39,889.60x = 1,337,540,282.88
  5. Step 5: Solve for x
    x = 1,337,540,282.88/39,889.60
  6. Step 6: Final answer
    x = 33,531.05

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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.