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Finding the Fourth Proportional to 12,303.62, 18,455.50 and 3,069.62

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Solution

The fourth proportional to 12,303.62, 18,455.50 and 3,069.62 is: 4,604.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.62 : 18,455.50 = 3,069.62 : x
  2. Step 2: Convert to fraction form
    12,303.62/18,455.50 = 3,069.62/x
  3. Step 3: Cross multiply
    12,303.62x = 18,455.50 × 3,069.62
  4. Step 4: Simplify right side
    12,303.62x = 56,651,371.91
  5. Step 5: Solve for x
    x = 56,651,371.91/12,303.62
  6. Step 6: Final answer
    x = 4,604.45

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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.