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Finding the Fourth Proportional to 30,556.28, 45,834.36 and 8,369.84

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Solution

The fourth proportional to 30,556.28, 45,834.36 and 8,369.84 is: 12,554.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,556.28 : 45,834.36 = 8,369.84 : x
  2. Step 2: Convert to fraction form
    30,556.28/45,834.36 = 8,369.84/x
  3. Step 3: Cross multiply
    30,556.28x = 45,834.36 × 8,369.84
  4. Step 4: Simplify right side
    30,556.28x = 383,626,259.70
  5. Step 5: Solve for x
    x = 383,626,259.70/30,556.28
  6. Step 6: Final answer
    x = 12,554.74

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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.