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Finding the Fourth Proportional to 55,077.75, 76,007.30 and 32,721.75

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Solution

The fourth proportional to 55,077.75, 76,007.30 and 32,721.75 is: 45,156.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,077.75 : 76,007.30 = 32,721.75 : x
  2. Step 2: Convert to fraction form
    55,077.75/76,007.30 = 32,721.75/x
  3. Step 3: Cross multiply
    55,077.75x = 76,007.30 × 32,721.75
  4. Step 4: Simplify right side
    55,077.75x = 2,487,091,705.17
  5. Step 5: Solve for x
    x = 2,487,091,705.17/55,077.75
  6. Step 6: Final answer
    x = 45,156.02

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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.