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Finding the Fourth Proportional to 57,414.64, 79,235.80 and 31,921.22

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Solution

The fourth proportional to 57,414.64, 79,235.80 and 31,921.22 is: 44,053.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,414.64 : 79,235.80 = 31,921.22 : x
  2. Step 2: Convert to fraction form
    57,414.64/79,235.80 = 31,921.22/x
  3. Step 3: Cross multiply
    57,414.64x = 79,235.80 × 31,921.22
  4. Step 4: Simplify right side
    57,414.64x = 2,529,303,403.68
  5. Step 5: Solve for x
    x = 2,529,303,403.68/57,414.64
  6. Step 6: Final answer
    x = 44,053.28

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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.