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Finding the Fourth Proportional to 39,883.20, 59,824.80 and 34,342.80

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Solution

The fourth proportional to 39,883.20, 59,824.80 and 34,342.80 is: 51,514.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,883.20 : 59,824.80 = 34,342.80 : x
  2. Step 2: Convert to fraction form
    39,883.20/59,824.80 = 34,342.80/x
  3. Step 3: Cross multiply
    39,883.20x = 59,824.80 × 34,342.80
  4. Step 4: Simplify right side
    39,883.20x = 2,054,551,141.44
  5. Step 5: Solve for x
    x = 2,054,551,141.44/39,883.20
  6. Step 6: Final answer
    x = 51,514.20

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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.