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Finding the Fourth Proportional to 19,758.57, 29,637.86 and 7,274.00

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Solution

The fourth proportional to 19,758.57, 29,637.86 and 7,274.00 is: 10,910.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.57 : 29,637.86 = 7,274.00 : x
  2. Step 2: Convert to fraction form
    19,758.57/29,637.86 = 7,274.00/x
  3. Step 3: Cross multiply
    19,758.57x = 29,637.86 × 7,274.00
  4. Step 4: Simplify right side
    19,758.57x = 215,585,609.08
  5. Step 5: Solve for x
    x = 215,585,609.08/19,758.57
  6. Step 6: Final answer
    x = 10,910.99

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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.