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Finding the Fourth Proportional to 18,312.14, 27,468.21 and 6,622.63

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Solution

The fourth proportional to 18,312.14, 27,468.21 and 6,622.63 is: 9,933.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.14 : 27,468.21 = 6,622.63 : x
  2. Step 2: Convert to fraction form
    18,312.14/27,468.21 = 6,622.63/x
  3. Step 3: Cross multiply
    18,312.14x = 27,468.21 × 6,622.63
  4. Step 4: Simplify right side
    18,312.14x = 181,911,654.25
  5. Step 5: Solve for x
    x = 181,911,654.25/18,312.14
  6. Step 6: Final answer
    x = 9,933.94

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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.