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Finding the Fourth Proportional to 19,798.72, 29,693.90 and 11,797.04

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Solution

The fourth proportional to 19,798.72, 29,693.90 and 11,797.04 is: 17,693.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,798.72 : 29,693.90 = 11,797.04 : x
  2. Step 2: Convert to fraction form
    19,798.72/29,693.90 = 11,797.04/x
  3. Step 3: Cross multiply
    19,798.72x = 29,693.90 × 11,797.04
  4. Step 4: Simplify right side
    19,798.72x = 350,300,007.08
  5. Step 5: Solve for x
    x = 350,300,007.08/19,798.72
  6. Step 6: Final answer
    x = 17,693.07

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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.