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Finding the Fourth Proportional to 53,202.48, 79,803.24 and 20,370.48

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Solution

The fourth proportional to 53,202.48, 79,803.24 and 20,370.48 is: 30,555.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,202.48 : 79,803.24 = 20,370.48 : x
  2. Step 2: Convert to fraction form
    53,202.48/79,803.24 = 20,370.48/x
  3. Step 3: Cross multiply
    53,202.48x = 79,803.24 × 20,370.48
  4. Step 4: Simplify right side
    53,202.48x = 1,625,630,304.36
  5. Step 5: Solve for x
    x = 1,625,630,304.36/53,202.48
  6. Step 6: Final answer
    x = 30,555.54

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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.