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Finding the Fourth Proportional to 19,994.43, 29,928.74 and 13,717.74

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Solution

The fourth proportional to 19,994.43, 29,928.74 and 13,717.74 is: 20,533.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.43 : 29,928.74 = 13,717.74 : x
  2. Step 2: Convert to fraction form
    19,994.43/29,928.74 = 13,717.74/x
  3. Step 3: Cross multiply
    19,994.43x = 29,928.74 × 13,717.74
  4. Step 4: Simplify right side
    19,994.43x = 410,554,605.26
  5. Step 5: Solve for x
    x = 410,554,605.26/19,994.43
  6. Step 6: Final answer
    x = 20,533.45

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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.