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Finding the Fourth Proportional to 55,212.60, 82,818.90 and 37,716.60

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Solution

The fourth proportional to 55,212.60, 82,818.90 and 37,716.60 is: 56,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,212.60 : 82,818.90 = 37,716.60 : x
  2. Step 2: Convert to fraction form
    55,212.60/82,818.90 = 37,716.60/x
  3. Step 3: Cross multiply
    55,212.60x = 82,818.90 × 37,716.60
  4. Step 4: Simplify right side
    55,212.60x = 3,123,647,323.74
  5. Step 5: Solve for x
    x = 3,123,647,323.74/55,212.60
  6. Step 6: Final answer
    x = 56,574.90

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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.