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Finding the Fourth Proportional to 12,548.08, 18,826.22 and 9,035.21

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Solution

The fourth proportional to 12,548.08, 18,826.22 and 9,035.21 is: 13,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.08 : 18,826.22 = 9,035.21 : x
  2. Step 2: Convert to fraction form
    12,548.08/18,826.22 = 9,035.21/x
  3. Step 3: Cross multiply
    12,548.08x = 18,826.22 × 9,035.21
  4. Step 4: Simplify right side
    12,548.08x = 170,098,920.86
  5. Step 5: Solve for x
    x = 170,098,920.86/12,548.08
  6. Step 6: Final answer
    x = 13,555.77

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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.