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Finding the Fourth Proportional to 55,515.51, 82,745.46 and 52,362.81

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Solution

The fourth proportional to 55,515.51, 82,745.46 and 52,362.81 is: 78,046.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,515.51 : 82,745.46 = 52,362.81 : x
  2. Step 2: Convert to fraction form
    55,515.51/82,745.46 = 52,362.81/x
  3. Step 3: Cross multiply
    55,515.51x = 82,745.46 × 52,362.81
  4. Step 4: Simplify right side
    55,515.51x = 4,332,784,800.34
  5. Step 5: Solve for x
    x = 4,332,784,800.34/55,515.51
  6. Step 6: Final answer
    x = 78,046.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.