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Finding the Fourth Proportional to 19,137.55, 28,706.33 and 5,990.04

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Solution

The fourth proportional to 19,137.55, 28,706.33 and 5,990.04 is: 8,985.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,137.55 : 28,706.33 = 5,990.04 : x
  2. Step 2: Convert to fraction form
    19,137.55/28,706.33 = 5,990.04/x
  3. Step 3: Cross multiply
    19,137.55x = 28,706.33 × 5,990.04
  4. Step 4: Simplify right side
    19,137.55x = 171,952,064.95
  5. Step 5: Solve for x
    x = 171,952,064.95/19,137.55
  6. Step 6: Final answer
    x = 8,985.06

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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.