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Finding the Fourth Proportional to 50,186.51, 69,251 and 28,677.65

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Solution

The fourth proportional to 50,186.51, 69,251 and 28,677.65 is: 39,571.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,186.51 : 69,251 = 28,677.65 : x
  2. Step 2: Convert to fraction form
    50,186.51/69,251 = 28,677.65/x
  3. Step 3: Cross multiply
    50,186.51x = 69,251 × 28,677.65
  4. Step 4: Simplify right side
    50,186.51x = 1,985,955,940.15
  5. Step 5: Solve for x
    x = 1,985,955,940.15/50,186.51
  6. Step 6: Final answer
    x = 39,571.51

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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.