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Finding the Fourth Proportional to 22,928.40, 34,376.40 and 10,454.40

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Solution

The fourth proportional to 22,928.40, 34,376.40 and 10,454.40 is: 15,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,928.40 : 34,376.40 = 10,454.40 : x
  2. Step 2: Convert to fraction form
    22,928.40/34,376.40 = 10,454.40/x
  3. Step 3: Cross multiply
    22,928.40x = 34,376.40 × 10,454.40
  4. Step 4: Simplify right side
    22,928.40x = 359,384,636.16
  5. Step 5: Solve for x
    x = 359,384,636.16/22,928.40
  6. Step 6: Final answer
    x = 15,674.21

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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.