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Finding the Fourth Proportional to 3,392.55, 4,668.44 and 3,000.51

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Solution

The fourth proportional to 3,392.55, 4,668.44 and 3,000.51 is: 4,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.55 : 4,668.44 = 3,000.51 : x
  2. Step 2: Convert to fraction form
    3,392.55/4,668.44 = 3,000.51/x
  3. Step 3: Cross multiply
    3,392.55x = 4,668.44 × 3,000.51
  4. Step 4: Simplify right side
    3,392.55x = 14,007,685.90
  5. Step 5: Solve for x
    x = 14,007,685.90/3,392.55
  6. Step 6: Final answer
    x = 4,128.95

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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.