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Finding the Fourth Proportional to 15,699.15, 23,548.73 and 9,859.86

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Solution

The fourth proportional to 15,699.15, 23,548.73 and 9,859.86 is: 14,789.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,699.15 : 23,548.73 = 9,859.86 : x
  2. Step 2: Convert to fraction form
    15,699.15/23,548.73 = 9,859.86/x
  3. Step 3: Cross multiply
    15,699.15x = 23,548.73 × 9,859.86
  4. Step 4: Simplify right side
    15,699.15x = 232,187,131.68
  5. Step 5: Solve for x
    x = 232,187,131.68/15,699.15
  6. Step 6: Final answer
    x = 14,789.79

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1.5x scale

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.