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Finding the Fourth Proportional to 35,393.28, 48,845.88 and 20,291.28

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Solution

The fourth proportional to 35,393.28, 48,845.88 and 20,291.28 is: 28,003.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,393.28 : 48,845.88 = 20,291.28 : x
  2. Step 2: Convert to fraction form
    35,393.28/48,845.88 = 20,291.28/x
  3. Step 3: Cross multiply
    35,393.28x = 48,845.88 × 20,291.28
  4. Step 4: Simplify right side
    35,393.28x = 991,145,427.93
  5. Step 5: Solve for x
    x = 991,145,427.93/35,393.28
  6. Step 6: Final answer
    x = 28,003.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.