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Finding the Fourth Proportional to 19,744.80, 29,674.80 and 17,210.40

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Solution

The fourth proportional to 19,744.80, 29,674.80 and 17,210.40 is: 25,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,744.80 : 29,674.80 = 17,210.40 : x
  2. Step 2: Convert to fraction form
    19,744.80/29,674.80 = 17,210.40/x
  3. Step 3: Cross multiply
    19,744.80x = 29,674.80 × 17,210.40
  4. Step 4: Simplify right side
    19,744.80x = 510,715,177.92
  5. Step 5: Solve for x
    x = 510,715,177.92/19,744.80
  6. Step 6: Final answer
    x = 25,865.81

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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.