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Finding the Fourth Proportional to 4,668.60, 7,000.47 and 2,200.95

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Solution

The fourth proportional to 4,668.60, 7,000.47 and 2,200.95 is: 3,300.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,668.60 : 7,000.47 = 2,200.95 : x
  2. Step 2: Convert to fraction form
    4,668.60/7,000.47 = 2,200.95/x
  3. Step 3: Cross multiply
    4,668.60x = 7,000.47 × 2,200.95
  4. Step 4: Simplify right side
    4,668.60x = 15,407,684.45
  5. Step 5: Solve for x
    x = 15,407,684.45/4,668.60
  6. Step 6: Final answer
    x = 3,300.28

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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.