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Finding the Fourth Proportional to 8,928.56, 13,392.42 and 2,354.60

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Solution

The fourth proportional to 8,928.56, 13,392.42 and 2,354.60 is: 3,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.56 : 13,392.42 = 2,354.60 : x
  2. Step 2: Convert to fraction form
    8,928.56/13,392.42 = 2,354.60/x
  3. Step 3: Cross multiply
    8,928.56x = 13,392.42 × 2,354.60
  4. Step 4: Simplify right side
    8,928.56x = 31,533,792.13
  5. Step 5: Solve for x
    x = 31,533,792.13/8,928.56
  6. Step 6: Final answer
    x = 3,531.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.