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Finding the Fourth Proportional to 4,700.53, 7,051.60 and 1,928.71

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Solution

The fourth proportional to 4,700.53, 7,051.60 and 1,928.71 is: 2,893.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,700.53 : 7,051.60 = 1,928.71 : x
  2. Step 2: Convert to fraction form
    4,700.53/7,051.60 = 1,928.71/x
  3. Step 3: Cross multiply
    4,700.53x = 7,051.60 × 1,928.71
  4. Step 4: Simplify right side
    4,700.53x = 13,600,456.18
  5. Step 5: Solve for x
    x = 13,600,456.18/4,700.53
  6. Step 6: Final answer
    x = 2,893.39

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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.