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Finding the Fourth Proportional to 18,318.42, 27,477.63 and 4,467.42

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Solution

The fourth proportional to 18,318.42, 27,477.63 and 4,467.42 is: 6,701.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.42 : 27,477.63 = 4,467.42 : x
  2. Step 2: Convert to fraction form
    18,318.42/27,477.63 = 4,467.42/x
  3. Step 3: Cross multiply
    18,318.42x = 27,477.63 × 4,467.42
  4. Step 4: Simplify right side
    18,318.42x = 122,754,113.81
  5. Step 5: Solve for x
    x = 122,754,113.81/18,318.42
  6. Step 6: Final answer
    x = 6,701.13

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1.5x scale

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.