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Finding the Fourth Proportional to 12,673.80, 19,010.70 and 11,604.60

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Solution

The fourth proportional to 12,673.80, 19,010.70 and 11,604.60 is: 17,406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,673.80 : 19,010.70 = 11,604.60 : x
  2. Step 2: Convert to fraction form
    12,673.80/19,010.70 = 11,604.60/x
  3. Step 3: Cross multiply
    12,673.80x = 19,010.70 × 11,604.60
  4. Step 4: Simplify right side
    12,673.80x = 220,611,569.22
  5. Step 5: Solve for x
    x = 220,611,569.22/12,673.80
  6. Step 6: Final answer
    x = 17,406.90

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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.