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Finding the Fourth Proportional to 7,155.99, 10,734.68 and 2,654.26

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Solution

The fourth proportional to 7,155.99, 10,734.68 and 2,654.26 is: 3,981.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.99 : 10,734.68 = 2,654.26 : x
  2. Step 2: Convert to fraction form
    7,155.99/10,734.68 = 2,654.26/x
  3. Step 3: Cross multiply
    7,155.99x = 10,734.68 × 2,654.26
  4. Step 4: Simplify right side
    7,155.99x = 28,492,611.54
  5. Step 5: Solve for x
    x = 28,492,611.54/7,155.99
  6. Step 6: Final answer
    x = 3,981.64

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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.