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Finding the Fourth Proportional to 26,447.51, 39,674.96 and 7,728.92

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Solution

The fourth proportional to 26,447.51, 39,674.96 and 7,728.92 is: 11,594.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,447.51 : 39,674.96 = 7,728.92 : x
  2. Step 2: Convert to fraction form
    26,447.51/39,674.96 = 7,728.92/x
  3. Step 3: Cross multiply
    26,447.51x = 39,674.96 × 7,728.92
  4. Step 4: Simplify right side
    26,447.51x = 306,644,412.79
  5. Step 5: Solve for x
    x = 306,644,412.79/26,447.51
  6. Step 6: Final answer
    x = 11,594.46

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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.