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Finding the Fourth Proportional to 72,950.77, 100,755.06 and 49,035.91

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Solution

The fourth proportional to 72,950.77, 100,755.06 and 49,035.91 is: 67,725.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,950.77 : 100,755.06 = 49,035.91 : x
  2. Step 2: Convert to fraction form
    72,950.77/100,755.06 = 49,035.91/x
  3. Step 3: Cross multiply
    72,950.77x = 100,755.06 × 49,035.91
  4. Step 4: Simplify right side
    72,950.77x = 4,940,616,054.20
  5. Step 5: Solve for x
    x = 4,940,616,054.20/72,950.77
  6. Step 6: Final answer
    x = 67,725.34

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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.