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Finding the Fourth Proportional to 53,168.51, 79,899.24 and 28,227.24

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Solution

The fourth proportional to 53,168.51, 79,899.24 and 28,227.24 is: 42,418.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,168.51 : 79,899.24 = 28,227.24 : x
  2. Step 2: Convert to fraction form
    53,168.51/79,899.24 = 28,227.24/x
  3. Step 3: Cross multiply
    53,168.51x = 79,899.24 × 28,227.24
  4. Step 4: Simplify right side
    53,168.51x = 2,255,335,023.30
  5. Step 5: Solve for x
    x = 2,255,335,023.30/53,168.51
  6. Step 6: Final answer
    x = 42,418.63

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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.