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Finding the Fourth Proportional to 55,224.48, 76,212.48 and 31,350.72

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Solution

The fourth proportional to 55,224.48, 76,212.48 and 31,350.72 is: 43,265.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,224.48 : 76,212.48 = 31,350.72 : x
  2. Step 2: Convert to fraction form
    55,224.48/76,212.48 = 31,350.72/x
  3. Step 3: Cross multiply
    55,224.48x = 76,212.48 × 31,350.72
  4. Step 4: Simplify right side
    55,224.48x = 2,389,316,120.99
  5. Step 5: Solve for x
    x = 2,389,316,120.99/55,224.48
  6. Step 6: Final answer
    x = 43,265.53

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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.