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Finding the Fourth Proportional to 55,659.44, 83,485.92 and 18,243.92

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Solution

The fourth proportional to 55,659.44, 83,485.92 and 18,243.92 is: 27,364.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,659.44 : 83,485.92 = 18,243.92 : x
  2. Step 2: Convert to fraction form
    55,659.44/83,485.92 = 18,243.92/x
  3. Step 3: Cross multiply
    55,659.44x = 83,485.92 × 18,243.92
  4. Step 4: Simplify right side
    55,659.44x = 1,523,110,445.61
  5. Step 5: Solve for x
    x = 1,523,110,445.61/55,659.44
  6. Step 6: Final answer
    x = 27,364.82

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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.