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Finding the Fourth Proportional to 12,726.79, 19,080.28 and 6,059.86

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Solution

The fourth proportional to 12,726.79, 19,080.28 and 6,059.86 is: 9,085.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.79 : 19,080.28 = 6,059.86 : x
  2. Step 2: Convert to fraction form
    12,726.79/19,080.28 = 6,059.86/x
  3. Step 3: Cross multiply
    12,726.79x = 19,080.28 × 6,059.86
  4. Step 4: Simplify right side
    12,726.79x = 115,623,699.86
  5. Step 5: Solve for x
    x = 115,623,699.86/12,726.79
  6. Step 6: Final answer
    x = 9,085.06

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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.