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Finding the Fourth Proportional to 7,074.84, 9,763.32 and 4,423.80

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Solution

The fourth proportional to 7,074.84, 9,763.32 and 4,423.80 is: 6,104.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.84 : 9,763.32 = 4,423.80 : x
  2. Step 2: Convert to fraction form
    7,074.84/9,763.32 = 4,423.80/x
  3. Step 3: Cross multiply
    7,074.84x = 9,763.32 × 4,423.80
  4. Step 4: Simplify right side
    7,074.84x = 43,190,975.02
  5. Step 5: Solve for x
    x = 43,190,975.02/7,074.84
  6. Step 6: Final answer
    x = 6,104.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.