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Finding the Fourth Proportional to 12,552.55, 18,824.02 and 4,230.32

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Solution

The fourth proportional to 12,552.55, 18,824.02 and 4,230.32 is: 6,343.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,552.55 : 18,824.02 = 4,230.32 : x
  2. Step 2: Convert to fraction form
    12,552.55/18,824.02 = 4,230.32/x
  3. Step 3: Cross multiply
    12,552.55x = 18,824.02 × 4,230.32
  4. Step 4: Simplify right side
    12,552.55x = 79,631,664.77
  5. Step 5: Solve for x
    x = 79,631,664.77/12,552.55
  6. Step 6: Final answer
    x = 6,343.86

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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.