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Finding the Fourth Proportional to 36,373.76, 49,978.24 and 28,908.80

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Solution

The fourth proportional to 36,373.76, 49,978.24 and 28,908.80 is: 39,721.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,373.76 : 49,978.24 = 28,908.80 : x
  2. Step 2: Convert to fraction form
    36,373.76/49,978.24 = 28,908.80/x
  3. Step 3: Cross multiply
    36,373.76x = 49,978.24 × 28,908.80
  4. Step 4: Simplify right side
    36,373.76x = 1,444,810,944.51
  5. Step 5: Solve for x
    x = 1,444,810,944.51/36,373.76
  6. Step 6: Final answer
    x = 39,721.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.