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Finding the Fourth Proportional to 12,651.19, 17,458.64 and 7,062.19

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Solution

The fourth proportional to 12,651.19, 17,458.64 and 7,062.19 is: 9,745.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,651.19 : 17,458.64 = 7,062.19 : x
  2. Step 2: Convert to fraction form
    12,651.19/17,458.64 = 7,062.19/x
  3. Step 3: Cross multiply
    12,651.19x = 17,458.64 × 7,062.19
  4. Step 4: Simplify right side
    12,651.19x = 123,296,180.35
  5. Step 5: Solve for x
    x = 123,296,180.35/12,651.19
  6. Step 6: Final answer
    x = 9,745.82

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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.