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Finding the Fourth Proportional to 56,284.80, 77,739.12 and 44,993.40

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Solution

The fourth proportional to 56,284.80, 77,739.12 and 44,993.40 is: 62,143.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,284.80 : 77,739.12 = 44,993.40 : x
  2. Step 2: Convert to fraction form
    56,284.80/77,739.12 = 44,993.40/x
  3. Step 3: Cross multiply
    56,284.80x = 77,739.12 × 44,993.40
  4. Step 4: Simplify right side
    56,284.80x = 3,497,747,321.81
  5. Step 5: Solve for x
    x = 3,497,747,321.81/56,284.80
  6. Step 6: Final answer
    x = 62,143.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.