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Finding the Fourth Proportional to 19,604.95, 29,409.01 and 11,761.06

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Solution

The fourth proportional to 19,604.95, 29,409.01 and 11,761.06 is: 17,642.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,604.95 : 29,409.01 = 11,761.06 : x
  2. Step 2: Convert to fraction form
    19,604.95/29,409.01 = 11,761.06/x
  3. Step 3: Cross multiply
    19,604.95x = 29,409.01 × 11,761.06
  4. Step 4: Simplify right side
    19,604.95x = 345,881,131.15
  5. Step 5: Solve for x
    x = 345,881,131.15/19,604.95
  6. Step 6: Final answer
    x = 17,642.54

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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.