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Finding the Fourth Proportional to 55,672.70, 83,314.65 and 38,954.30

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Solution

The fourth proportional to 55,672.70, 83,314.65 and 38,954.30 is: 58,295.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,672.70 : 83,314.65 = 38,954.30 : x
  2. Step 2: Convert to fraction form
    55,672.70/83,314.65 = 38,954.30/x
  3. Step 3: Cross multiply
    55,672.70x = 83,314.65 × 38,954.30
  4. Step 4: Simplify right side
    55,672.70x = 3,245,463,870.50
  5. Step 5: Solve for x
    x = 3,245,463,870.50/55,672.70
  6. Step 6: Final answer
    x = 58,295.43

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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.