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Finding the Fourth Proportional to 18,319.59, 25,281.03 and 10,361.64

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Solution

The fourth proportional to 18,319.59, 25,281.03 and 10,361.64 is: 14,299.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.59 : 25,281.03 = 10,361.64 : x
  2. Step 2: Convert to fraction form
    18,319.59/25,281.03 = 10,361.64/x
  3. Step 3: Cross multiply
    18,319.59x = 25,281.03 × 10,361.64
  4. Step 4: Simplify right side
    18,319.59x = 261,952,879.88
  5. Step 5: Solve for x
    x = 261,952,879.88/18,319.59
  6. Step 6: Final answer
    x = 14,299.06

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1.5x scale

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.