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Finding the Fourth Proportional to 57,479.93, 86,219.92 and 15,926.93

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Solution

The fourth proportional to 57,479.93, 86,219.92 and 15,926.93 is: 23,890.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,479.93 : 86,219.92 = 15,926.93 : x
  2. Step 2: Convert to fraction form
    57,479.93/86,219.92 = 15,926.93/x
  3. Step 3: Cross multiply
    57,479.93x = 86,219.92 × 15,926.93
  4. Step 4: Simplify right side
    57,479.93x = 1,373,218,199.35
  5. Step 5: Solve for x
    x = 1,373,218,199.35/57,479.93
  6. Step 6: Final answer
    x = 23,890.40

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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.