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Finding the Fourth Proportional to 19,152, 28,737.72 and 8,766.36

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Solution

The fourth proportional to 19,152, 28,737.72 and 8,766.36 is: 13,153.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152 : 28,737.72 = 8,766.36 : x
  2. Step 2: Convert to fraction form
    19,152/28,737.72 = 8,766.36/x
  3. Step 3: Cross multiply
    19,152x = 28,737.72 × 8,766.36
  4. Step 4: Simplify right side
    19,152x = 251,925,199.10
  5. Step 5: Solve for x
    x = 251,925,199.10/19,152
  6. Step 6: Final answer
    x = 13,153.99

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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.