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Finding the Fourth Proportional to 72,015.37, 107,813.86 and 41,937.91

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Solution

The fourth proportional to 72,015.37, 107,813.86 and 41,937.91 is: 62,785.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,015.37 : 107,813.86 = 41,937.91 : x
  2. Step 2: Convert to fraction form
    72,015.37/107,813.86 = 41,937.91/x
  3. Step 3: Cross multiply
    72,015.37x = 107,813.86 × 41,937.91
  4. Step 4: Simplify right side
    72,015.37x = 4,521,487,957.43
  5. Step 5: Solve for x
    x = 4,521,487,957.43/72,015.37
  6. Step 6: Final answer
    x = 62,785.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.