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Finding the Fourth Proportional to 15,793.56, 23,682.40 and 5,259.87

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Solution

The fourth proportional to 15,793.56, 23,682.40 and 5,259.87 is: 7,887.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,793.56 : 23,682.40 = 5,259.87 : x
  2. Step 2: Convert to fraction form
    15,793.56/23,682.40 = 5,259.87/x
  3. Step 3: Cross multiply
    15,793.56x = 23,682.40 × 5,259.87
  4. Step 4: Simplify right side
    15,793.56x = 124,566,345.29
  5. Step 5: Solve for x
    x = 124,566,345.29/15,793.56
  6. Step 6: Final answer
    x = 7,887.16

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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.