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Finding the Fourth Proportional to 13,751.51, 20,613.22 and 5,437.26

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Solution

The fourth proportional to 13,751.51, 20,613.22 and 5,437.26 is: 8,150.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.51 : 20,613.22 = 5,437.26 : x
  2. Step 2: Convert to fraction form
    13,751.51/20,613.22 = 5,437.26/x
  3. Step 3: Cross multiply
    13,751.51x = 20,613.22 × 5,437.26
  4. Step 4: Simplify right side
    13,751.51x = 112,079,422.98
  5. Step 5: Solve for x
    x = 112,079,422.98/13,751.51
  6. Step 6: Final answer
    x = 8,150.34

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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.