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Finding the Fourth Proportional to 18,335.87, 25,303.34 and 10,378.02

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Solution

The fourth proportional to 18,335.87, 25,303.34 and 10,378.02 is: 14,321.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,335.87 : 25,303.34 = 10,378.02 : x
  2. Step 2: Convert to fraction form
    18,335.87/25,303.34 = 10,378.02/x
  3. Step 3: Cross multiply
    18,335.87x = 25,303.34 × 10,378.02
  4. Step 4: Simplify right side
    18,335.87x = 262,598,594.53
  5. Step 5: Solve for x
    x = 262,598,594.53/18,335.87
  6. Step 6: Final answer
    x = 14,321.58

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