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Finding the Fourth Proportional to 19,907.51, 29,818.19 and 9,361.73

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Solution

The fourth proportional to 19,907.51, 29,818.19 and 9,361.73 is: 14,022.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.51 : 29,818.19 = 9,361.73 : x
  2. Step 2: Convert to fraction form
    19,907.51/29,818.19 = 9,361.73/x
  3. Step 3: Cross multiply
    19,907.51x = 29,818.19 × 9,361.73
  4. Step 4: Simplify right side
    19,907.51x = 279,149,774.09
  5. Step 5: Solve for x
    x = 279,149,774.09/19,907.51
  6. Step 6: Final answer
    x = 14,022.34

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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.