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Finding the Fourth Proportional to 19,693.08, 29,424.31 and 19,004.04

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Solution

The fourth proportional to 19,693.08, 29,424.31 and 19,004.04 is: 28,394.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,693.08 : 29,424.31 = 19,004.04 : x
  2. Step 2: Convert to fraction form
    19,693.08/29,424.31 = 19,004.04/x
  3. Step 3: Cross multiply
    19,693.08x = 29,424.31 × 19,004.04
  4. Step 4: Simplify right side
    19,693.08x = 559,180,716.70
  5. Step 5: Solve for x
    x = 559,180,716.70/19,693.08
  6. Step 6: Final answer
    x = 28,394.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.