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Finding the Fourth Proportional to 13,300.88, 19,951.31 and 4,066.88

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Solution

The fourth proportional to 13,300.88, 19,951.31 and 4,066.88 is: 6,100.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.88 : 19,951.31 = 4,066.88 : x
  2. Step 2: Convert to fraction form
    13,300.88/19,951.31 = 4,066.88/x
  3. Step 3: Cross multiply
    13,300.88x = 19,951.31 × 4,066.88
  4. Step 4: Simplify right side
    13,300.88x = 81,139,494.02
  5. Step 5: Solve for x
    x = 81,139,494.02/13,300.88
  6. Step 6: Final answer
    x = 6,100.31

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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.