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Finding the Fourth Proportional to 19,809.58, 29,698.11 and 9,274.47

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Solution

The fourth proportional to 19,809.58, 29,698.11 and 9,274.47 is: 13,904.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.58 : 29,698.11 = 9,274.47 : x
  2. Step 2: Convert to fraction form
    19,809.58/29,698.11 = 9,274.47/x
  3. Step 3: Cross multiply
    19,809.58x = 29,698.11 × 9,274.47
  4. Step 4: Simplify right side
    19,809.58x = 275,434,230.25
  5. Step 5: Solve for x
    x = 275,434,230.25/19,809.58
  6. Step 6: Final answer
    x = 13,904.09

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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.