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Finding the Fourth Proportional to 6,368.60, 8,788.72 and 3,852.38

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Solution

The fourth proportional to 6,368.60, 8,788.72 and 3,852.38 is: 5,316.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.60 : 8,788.72 = 3,852.38 : x
  2. Step 2: Convert to fraction form
    6,368.60/8,788.72 = 3,852.38/x
  3. Step 3: Cross multiply
    6,368.60x = 8,788.72 × 3,852.38
  4. Step 4: Simplify right side
    6,368.60x = 33,857,489.15
  5. Step 5: Solve for x
    x = 33,857,489.15/6,368.60
  6. Step 6: Final answer
    x = 5,316.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.