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Finding the Fourth Proportional to 16,545.72, 24,821.64 and 5,455.56

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Solution

The fourth proportional to 16,545.72, 24,821.64 and 5,455.56 is: 8,184.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,545.72 : 24,821.64 = 5,455.56 : x
  2. Step 2: Convert to fraction form
    16,545.72/24,821.64 = 5,455.56/x
  3. Step 3: Cross multiply
    16,545.72x = 24,821.64 × 5,455.56
  4. Step 4: Simplify right side
    16,545.72x = 135,415,946.32
  5. Step 5: Solve for x
    x = 135,415,946.32/16,545.72
  6. Step 6: Final answer
    x = 8,184.35

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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.