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Finding the Fourth Proportional to 19,561.99, 29,303.85 and 9,017.59

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Solution

The fourth proportional to 19,561.99, 29,303.85 and 9,017.59 is: 13,508.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561.99 : 29,303.85 = 9,017.59 : x
  2. Step 2: Convert to fraction form
    19,561.99/29,303.85 = 9,017.59/x
  3. Step 3: Cross multiply
    19,561.99x = 29,303.85 × 9,017.59
  4. Step 4: Simplify right side
    19,561.99x = 264,250,012.44
  5. Step 5: Solve for x
    x = 264,250,012.44/19,561.99
  6. Step 6: Final answer
    x = 13,508.34

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.