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Finding the Fourth Proportional to 12,804.70, 19,209.73 and 4,484.99

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Solution

The fourth proportional to 12,804.70, 19,209.73 and 4,484.99 is: 6,728.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.70 : 19,209.73 = 4,484.99 : x
  2. Step 2: Convert to fraction form
    12,804.70/19,209.73 = 4,484.99/x
  3. Step 3: Cross multiply
    12,804.70x = 19,209.73 × 4,484.99
  4. Step 4: Simplify right side
    12,804.70x = 86,155,396.73
  5. Step 5: Solve for x
    x = 86,155,396.73/12,804.70
  6. Step 6: Final answer
    x = 6,728.42

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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.