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Finding the Fourth Proportional to 13,804.62, 20,708.30 and 5,040.22

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Solution

The fourth proportional to 13,804.62, 20,708.30 and 5,040.22 is: 7,560.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,804.62 : 20,708.30 = 5,040.22 : x
  2. Step 2: Convert to fraction form
    13,804.62/20,708.30 = 5,040.22/x
  3. Step 3: Cross multiply
    13,804.62x = 20,708.30 × 5,040.22
  4. Step 4: Simplify right side
    13,804.62x = 104,374,387.83
  5. Step 5: Solve for x
    x = 104,374,387.83/13,804.62
  6. Step 6: Final answer
    x = 7,560.83

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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.