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Finding the Fourth Proportional to 55,349.52, 76,398.60 and 31,489.52

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Solution

The fourth proportional to 55,349.52, 76,398.60 and 31,489.52 is: 43,464.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,349.52 : 76,398.60 = 31,489.52 : x
  2. Step 2: Convert to fraction form
    55,349.52/76,398.60 = 31,489.52/x
  3. Step 3: Cross multiply
    55,349.52x = 76,398.60 × 31,489.52
  4. Step 4: Simplify right side
    55,349.52x = 2,405,755,242.67
  5. Step 5: Solve for x
    x = 2,405,755,242.67/55,349.52
  6. Step 6: Final answer
    x = 43,464.79

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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.