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Finding the Fourth Proportional to 55,625.70, 83,438.55 and 51,305.70

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Solution

The fourth proportional to 55,625.70, 83,438.55 and 51,305.70 is: 76,958.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,625.70 : 83,438.55 = 51,305.70 : x
  2. Step 2: Convert to fraction form
    55,625.70/83,438.55 = 51,305.70/x
  3. Step 3: Cross multiply
    55,625.70x = 83,438.55 × 51,305.70
  4. Step 4: Simplify right side
    55,625.70x = 4,280,873,214.74
  5. Step 5: Solve for x
    x = 4,280,873,214.74/55,625.70
  6. Step 6: Final answer
    x = 76,958.55

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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.