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Finding the Fourth Proportional to 3,674.84, 5,515.00 and 2,290.19

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Solution

The fourth proportional to 3,674.84, 5,515.00 and 2,290.19 is: 3,436.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,674.84 : 5,515.00 = 2,290.19 : x
  2. Step 2: Convert to fraction form
    3,674.84/5,515.00 = 2,290.19/x
  3. Step 3: Cross multiply
    3,674.84x = 5,515.00 × 2,290.19
  4. Step 4: Simplify right side
    3,674.84x = 12,630,364.55
  5. Step 5: Solve for x
    x = 12,630,364.55/3,674.84
  6. Step 6: Final answer
    x = 3,436.99

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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.