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Finding the Fourth Proportional to 57,358.47, 86,035.44 and 19,927.08

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Solution

The fourth proportional to 57,358.47, 86,035.44 and 19,927.08 is: 29,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,358.47 : 86,035.44 = 19,927.08 : x
  2. Step 2: Convert to fraction form
    57,358.47/86,035.44 = 19,927.08/x
  3. Step 3: Cross multiply
    57,358.47x = 86,035.44 × 19,927.08
  4. Step 4: Simplify right side
    57,358.47x = 1,714,435,095.72
  5. Step 5: Solve for x
    x = 1,714,435,095.72/57,358.47
  6. Step 6: Final answer
    x = 29,889.83

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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.