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Finding the Fourth Proportional to 19,662.88, 29,484.08 and 9,271.84

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Solution

The fourth proportional to 19,662.88, 29,484.08 and 9,271.84 is: 13,902.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.88 : 29,484.08 = 9,271.84 : x
  2. Step 2: Convert to fraction form
    19,662.88/29,484.08 = 9,271.84/x
  3. Step 3: Cross multiply
    19,662.88x = 29,484.08 × 9,271.84
  4. Step 4: Simplify right side
    19,662.88x = 273,371,672.31
  5. Step 5: Solve for x
    x = 273,371,672.31/19,662.88
  6. Step 6: Final answer
    x = 13,902.93

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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.