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Finding the Fourth Proportional to 25,405.68, 38,109.36 and 8,765.52

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Solution

The fourth proportional to 25,405.68, 38,109.36 and 8,765.52 is: 13,148.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,405.68 : 38,109.36 = 8,765.52 : x
  2. Step 2: Convert to fraction form
    25,405.68/38,109.36 = 8,765.52/x
  3. Step 3: Cross multiply
    25,405.68x = 38,109.36 × 8,765.52
  4. Step 4: Simplify right side
    25,405.68x = 334,048,357.27
  5. Step 5: Solve for x
    x = 334,048,357.27/25,405.68
  6. Step 6: Final answer
    x = 13,148.57

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