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Finding the Fourth Proportional to 62,120.76, 85,728.92 and 33,828.52

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Solution

The fourth proportional to 62,120.76, 85,728.92 and 33,828.52 is: 46,684.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,120.76 : 85,728.92 = 33,828.52 : x
  2. Step 2: Convert to fraction form
    62,120.76/85,728.92 = 33,828.52/x
  3. Step 3: Cross multiply
    62,120.76x = 85,728.92 × 33,828.52
  4. Step 4: Simplify right side
    62,120.76x = 2,900,082,484.80
  5. Step 5: Solve for x
    x = 2,900,082,484.80/62,120.76
  6. Step 6: Final answer
    x = 46,684.59

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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.