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Finding the Fourth Proportional to 55,079.70, 76,009.74 and 32,418.54

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Solution

The fourth proportional to 55,079.70, 76,009.74 and 32,418.54 is: 44,737.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,079.70 : 76,009.74 = 32,418.54 : x
  2. Step 2: Convert to fraction form
    55,079.70/76,009.74 = 32,418.54/x
  3. Step 3: Cross multiply
    55,079.70x = 76,009.74 × 32,418.54
  4. Step 4: Simplify right side
    55,079.70x = 2,464,124,796.58
  5. Step 5: Solve for x
    x = 2,464,124,796.58/55,079.70
  6. Step 6: Final answer
    x = 44,737.44

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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.