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Finding the Fourth Proportional to 55,256.80, 82,690.80 and 37,760.80

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Solution

The fourth proportional to 55,256.80, 82,690.80 and 37,760.80 is: 56,508.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,256.80 : 82,690.80 = 37,760.80 : x
  2. Step 2: Convert to fraction form
    55,256.80/82,690.80 = 37,760.80/x
  3. Step 3: Cross multiply
    55,256.80x = 82,690.80 × 37,760.80
  4. Step 4: Simplify right side
    55,256.80x = 3,122,470,760.64
  5. Step 5: Solve for x
    x = 3,122,470,760.64/55,256.80
  6. Step 6: Final answer
    x = 56,508.35

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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.