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Finding the Fourth Proportional to 19,462.88, 29,205.44 and 7,617.63

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Solution

The fourth proportional to 19,462.88, 29,205.44 and 7,617.63 is: 11,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,462.88 : 29,205.44 = 7,617.63 : x
  2. Step 2: Convert to fraction form
    19,462.88/29,205.44 = 7,617.63/x
  3. Step 3: Cross multiply
    19,462.88x = 29,205.44 × 7,617.63
  4. Step 4: Simplify right side
    19,462.88x = 222,476,197.82
  5. Step 5: Solve for x
    x = 222,476,197.82/19,462.88
  6. Step 6: Final answer
    x = 11,430.80

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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.