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Finding the Fourth Proportional to 4,702.74, 7,052.48 and 1,928.63

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Solution

The fourth proportional to 4,702.74, 7,052.48 and 1,928.63 is: 2,892.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,702.74 : 7,052.48 = 1,928.63 : x
  2. Step 2: Convert to fraction form
    4,702.74/7,052.48 = 1,928.63/x
  3. Step 3: Cross multiply
    4,702.74x = 7,052.48 × 1,928.63
  4. Step 4: Simplify right side
    4,702.74x = 13,601,579.60
  5. Step 5: Solve for x
    x = 13,601,579.60/4,702.74
  6. Step 6: Final answer
    x = 2,892.27

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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.