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Finding the Fourth Proportional to 18,832.61, 28,252.56 and 7,154.03

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Solution

The fourth proportional to 18,832.61, 28,252.56 and 7,154.03 is: 10,732.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.61 : 28,252.56 = 7,154.03 : x
  2. Step 2: Convert to fraction form
    18,832.61/28,252.56 = 7,154.03/x
  3. Step 3: Cross multiply
    18,832.61x = 28,252.56 × 7,154.03
  4. Step 4: Simplify right side
    18,832.61x = 202,119,661.82
  5. Step 5: Solve for x
    x = 202,119,661.82/18,832.61
  6. Step 6: Final answer
    x = 10,732.43

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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.