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Finding the Fourth Proportional to 3,668.94, 5,070.42 and 3,004.74

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Solution

The fourth proportional to 3,668.94, 5,070.42 and 3,004.74 is: 4,152.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.94 : 5,070.42 = 3,004.74 : x
  2. Step 2: Convert to fraction form
    3,668.94/5,070.42 = 3,004.74/x
  3. Step 3: Cross multiply
    3,668.94x = 5,070.42 × 3,004.74
  4. Step 4: Simplify right side
    3,668.94x = 15,235,293.79
  5. Step 5: Solve for x
    x = 15,235,293.79/3,668.94
  6. Step 6: Final answer
    x = 4,152.51

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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.