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Finding the Fourth Proportional to 28,842.57, 39,803.27 and 16,914.51

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Solution

The fourth proportional to 28,842.57, 39,803.27 and 16,914.51 is: 23,342.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,842.57 : 39,803.27 = 16,914.51 : x
  2. Step 2: Convert to fraction form
    28,842.57/39,803.27 = 16,914.51/x
  3. Step 3: Cross multiply
    28,842.57x = 39,803.27 × 16,914.51
  4. Step 4: Simplify right side
    28,842.57x = 673,252,723.88
  5. Step 5: Solve for x
    x = 673,252,723.88/28,842.57
  6. Step 6: Final answer
    x = 23,342.33

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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.