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Finding the Fourth Proportional to 62,115.30, 85,716.54 and 33,820.92

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Solution

The fourth proportional to 62,115.30, 85,716.54 and 33,820.92 is: 46,671.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,115.30 : 85,716.54 = 33,820.92 : x
  2. Step 2: Convert to fraction form
    62,115.30/85,716.54 = 33,820.92/x
  3. Step 3: Cross multiply
    62,115.30x = 85,716.54 × 33,820.92
  4. Step 4: Simplify right side
    62,115.30x = 2,899,012,242.02
  5. Step 5: Solve for x
    x = 2,899,012,242.02/62,115.30
  6. Step 6: Final answer
    x = 46,671.47

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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.