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Finding the Fourth Proportional to 7,173.60, 10,743.12 and 4,858.08

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Solution

The fourth proportional to 7,173.60, 10,743.12 and 4,858.08 is: 7,275.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,173.60 : 10,743.12 = 4,858.08 : x
  2. Step 2: Convert to fraction form
    7,173.60/10,743.12 = 4,858.08/x
  3. Step 3: Cross multiply
    7,173.60x = 10,743.12 × 4,858.08
  4. Step 4: Simplify right side
    7,173.60x = 52,190,936.41
  5. Step 5: Solve for x
    x = 52,190,936.41/7,173.60
  6. Step 6: Final answer
    x = 7,275.42

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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.