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Finding the Fourth Proportional to 12,533.66, 18,800.94 and 4,213.95

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Solution

The fourth proportional to 12,533.66, 18,800.94 and 4,213.95 is: 6,321.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,533.66 : 18,800.94 = 4,213.95 : x
  2. Step 2: Convert to fraction form
    12,533.66/18,800.94 = 4,213.95/x
  3. Step 3: Cross multiply
    12,533.66x = 18,800.94 × 4,213.95
  4. Step 4: Simplify right side
    12,533.66x = 79,226,221.11
  5. Step 5: Solve for x
    x = 79,226,221.11/12,533.66
  6. Step 6: Final answer
    x = 6,321.08

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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.