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Finding the Fourth Proportional to 12,716.80, 17,548.48 and 7,051.22

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Solution

The fourth proportional to 12,716.80, 17,548.48 and 7,051.22 is: 9,730.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,716.80 : 17,548.48 = 7,051.22 : x
  2. Step 2: Convert to fraction form
    12,716.80/17,548.48 = 7,051.22/x
  3. Step 3: Cross multiply
    12,716.80x = 17,548.48 × 7,051.22
  4. Step 4: Simplify right side
    12,716.80x = 123,738,087.78
  5. Step 5: Solve for x
    x = 123,738,087.78/12,716.80
  6. Step 6: Final answer
    x = 9,730.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.