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Finding the Fourth Proportional to 19,264.96, 28,892.40 and 5,410.72

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Solution

The fourth proportional to 19,264.96, 28,892.40 and 5,410.72 is: 8,114.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,264.96 : 28,892.40 = 5,410.72 : x
  2. Step 2: Convert to fraction form
    19,264.96/28,892.40 = 5,410.72/x
  3. Step 3: Cross multiply
    19,264.96x = 28,892.40 × 5,410.72
  4. Step 4: Simplify right side
    19,264.96x = 156,328,686.53
  5. Step 5: Solve for x
    x = 156,328,686.53/19,264.96
  6. Step 6: Final answer
    x = 8,114.66

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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.