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Finding the Fourth Proportional to 7,185.21, 10,774.21 and 4,557.99

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Solution

The fourth proportional to 7,185.21, 10,774.21 and 4,557.99 is: 6,834.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185.21 : 10,774.21 = 4,557.99 : x
  2. Step 2: Convert to fraction form
    7,185.21/10,774.21 = 4,557.99/x
  3. Step 3: Cross multiply
    7,185.21x = 10,774.21 × 4,557.99
  4. Step 4: Simplify right side
    7,185.21x = 49,108,705.57
  5. Step 5: Solve for x
    x = 49,108,705.57/7,185.21
  6. Step 6: Final answer
    x = 6,834.70

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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.