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Finding the Fourth Proportional to 28,054.96, 38,719.54 and 17,846.98

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Solution

The fourth proportional to 28,054.96, 38,719.54 and 17,846.98 is: 24,631.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,054.96 : 38,719.54 = 17,846.98 : x
  2. Step 2: Convert to fraction form
    28,054.96/38,719.54 = 17,846.98/x
  3. Step 3: Cross multiply
    28,054.96x = 38,719.54 × 17,846.98
  4. Step 4: Simplify right side
    28,054.96x = 691,027,049.49
  5. Step 5: Solve for x
    x = 691,027,049.49/28,054.96
  6. Step 6: Final answer
    x = 24,631.19

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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.