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Finding the Fourth Proportional to 53,199.48, 79,798.74 and 20,367.48

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Solution

The fourth proportional to 53,199.48, 79,798.74 and 20,367.48 is: 30,551.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,199.48 : 79,798.74 = 20,367.48 : x
  2. Step 2: Convert to fraction form
    53,199.48/79,798.74 = 20,367.48/x
  3. Step 3: Cross multiply
    53,199.48x = 79,798.74 × 20,367.48
  4. Step 4: Simplify right side
    53,199.48x = 1,625,299,240.98
  5. Step 5: Solve for x
    x = 1,625,299,240.98/53,199.48
  6. Step 6: Final answer
    x = 30,551.04

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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.