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Finding the Fourth Proportional to 62,073.12, 85,662.72 and 33,780.64

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Solution

The fourth proportional to 62,073.12, 85,662.72 and 33,780.64 is: 46,618.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,073.12 : 85,662.72 = 33,780.64 : x
  2. Step 2: Convert to fraction form
    62,073.12/85,662.72 = 33,780.64/x
  3. Step 3: Cross multiply
    62,073.12x = 85,662.72 × 33,780.64
  4. Step 4: Simplify right side
    62,073.12x = 2,893,741,505.74
  5. Step 5: Solve for x
    x = 2,893,741,505.74/62,073.12
  6. Step 6: Final answer
    x = 46,618.27

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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.