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Finding the Fourth Proportional to 60,720.80, 83,794.32 and 33,863.64

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Solution

The fourth proportional to 60,720.80, 83,794.32 and 33,863.64 is: 46,731.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,720.80 : 83,794.32 = 33,863.64 : x
  2. Step 2: Convert to fraction form
    60,720.80/83,794.32 = 33,863.64/x
  3. Step 3: Cross multiply
    60,720.80x = 83,794.32 × 33,863.64
  4. Step 4: Simplify right side
    60,720.80x = 2,837,580,686.52
  5. Step 5: Solve for x
    x = 2,837,580,686.52/60,720.80
  6. Step 6: Final answer
    x = 46,731.61

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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.