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Finding the Fourth Proportional to 12,206.70, 18,298.98 and 4,410

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Solution

The fourth proportional to 12,206.70, 18,298.98 and 4,410 is: 6,611.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.70 : 18,298.98 = 4,410 : x
  2. Step 2: Convert to fraction form
    12,206.70/18,298.98 = 4,410/x
  3. Step 3: Cross multiply
    12,206.70x = 18,298.98 × 4,410
  4. Step 4: Simplify right side
    12,206.70x = 80,698,501.80
  5. Step 5: Solve for x
    x = 80,698,501.80/12,206.70
  6. Step 6: Final answer
    x = 6,611.00

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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.