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Finding the Fourth Proportional to 55,723.70, 83,585.55 and 51,403.70

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Solution

The fourth proportional to 55,723.70, 83,585.55 and 51,403.70 is: 77,105.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,723.70 : 83,585.55 = 51,403.70 : x
  2. Step 2: Convert to fraction form
    55,723.70/83,585.55 = 51,403.70/x
  3. Step 3: Cross multiply
    55,723.70x = 83,585.55 × 51,403.70
  4. Step 4: Simplify right side
    55,723.70x = 4,296,606,536.54
  5. Step 5: Solve for x
    x = 4,296,606,536.54/55,723.70
  6. Step 6: Final answer
    x = 77,105.55

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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.