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Finding the Fourth Proportional to 28,565.01, 42,837.48 and 8,568.54

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Solution

The fourth proportional to 28,565.01, 42,837.48 and 8,568.54 is: 12,849.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,565.01 : 42,837.48 = 8,568.54 : x
  2. Step 2: Convert to fraction form
    28,565.01/42,837.48 = 8,568.54/x
  3. Step 3: Cross multiply
    28,565.01x = 42,837.48 × 8,568.54
  4. Step 4: Simplify right side
    28,565.01x = 367,054,660.88
  5. Step 5: Solve for x
    x = 367,054,660.88/28,565.01
  6. Step 6: Final answer
    x = 12,849.80

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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.