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Finding the Fourth Proportional to 56,405.57, 77,839.65 and 33,745.48

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Solution

The fourth proportional to 56,405.57, 77,839.65 and 33,745.48 is: 46,568.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,405.57 : 77,839.65 = 33,745.48 : x
  2. Step 2: Convert to fraction form
    56,405.57/77,839.65 = 33,745.48/x
  3. Step 3: Cross multiply
    56,405.57x = 77,839.65 × 33,745.48
  4. Step 4: Simplify right side
    56,405.57x = 2,626,736,157.68
  5. Step 5: Solve for x
    x = 2,626,736,157.68/56,405.57
  6. Step 6: Final answer
    x = 46,568.74

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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.