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Finding the Fourth Proportional to 17,574.47, 26,361.71 and 7,186.22

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Solution

The fourth proportional to 17,574.47, 26,361.71 and 7,186.22 is: 10,779.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,574.47 : 26,361.71 = 7,186.22 : x
  2. Step 2: Convert to fraction form
    17,574.47/26,361.71 = 7,186.22/x
  3. Step 3: Cross multiply
    17,574.47x = 26,361.71 × 7,186.22
  4. Step 4: Simplify right side
    17,574.47x = 189,440,879.90
  5. Step 5: Solve for x
    x = 189,440,879.90/17,574.47
  6. Step 6: Final answer
    x = 10,779.33

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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.