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Finding the Fourth Proportional to 19,296.59, 28,955.99 and 10,411.90

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Solution

The fourth proportional to 19,296.59, 28,955.99 and 10,411.90 is: 15,623.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,296.59 : 28,955.99 = 10,411.90 : x
  2. Step 2: Convert to fraction form
    19,296.59/28,955.99 = 10,411.90/x
  3. Step 3: Cross multiply
    19,296.59x = 28,955.99 × 10,411.90
  4. Step 4: Simplify right side
    19,296.59x = 301,486,872.28
  5. Step 5: Solve for x
    x = 301,486,872.28/19,296.59
  6. Step 6: Final answer
    x = 15,623.84

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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.