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Finding the Fourth Proportional to 12,866.82, 19,299.90 and 5,941.32

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Solution

The fourth proportional to 12,866.82, 19,299.90 and 5,941.32 is: 8,911.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866.82 : 19,299.90 = 5,941.32 : x
  2. Step 2: Convert to fraction form
    12,866.82/19,299.90 = 5,941.32/x
  3. Step 3: Cross multiply
    12,866.82x = 19,299.90 × 5,941.32
  4. Step 4: Simplify right side
    12,866.82x = 114,666,881.87
  5. Step 5: Solve for x
    x = 114,666,881.87/12,866.82
  6. Step 6: Final answer
    x = 8,911.83

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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.