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Finding the Fourth Proportional to 11,619.70, 17,429.73 and 7,461.52

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Solution

The fourth proportional to 11,619.70, 17,429.73 and 7,461.52 is: 11,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.70 : 17,429.73 = 7,461.52 : x
  2. Step 2: Convert to fraction form
    11,619.70/17,429.73 = 7,461.52/x
  3. Step 3: Cross multiply
    11,619.70x = 17,429.73 × 7,461.52
  4. Step 4: Simplify right side
    11,619.70x = 130,052,278.99
  5. Step 5: Solve for x
    x = 130,052,278.99/11,619.70
  6. Step 6: Final answer
    x = 11,192.40

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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.