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Finding the Fourth Proportional to 55,225.44, 82,838.16 and 13,672.44

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Solution

The fourth proportional to 55,225.44, 82,838.16 and 13,672.44 is: 20,508.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,225.44 : 82,838.16 = 13,672.44 : x
  2. Step 2: Convert to fraction form
    55,225.44/82,838.16 = 13,672.44/x
  3. Step 3: Cross multiply
    55,225.44x = 82,838.16 × 13,672.44
  4. Step 4: Simplify right side
    55,225.44x = 1,132,599,772.31
  5. Step 5: Solve for x
    x = 1,132,599,772.31/55,225.44
  6. Step 6: Final answer
    x = 20,508.66

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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.