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Finding the Fourth Proportional to 10,668.60, 16,005.30 and 6,283.80

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Solution

The fourth proportional to 10,668.60, 16,005.30 and 6,283.80 is: 9,427.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,668.60 : 16,005.30 = 6,283.80 : x
  2. Step 2: Convert to fraction form
    10,668.60/16,005.30 = 6,283.80/x
  3. Step 3: Cross multiply
    10,668.60x = 16,005.30 × 6,283.80
  4. Step 4: Simplify right side
    10,668.60x = 100,574,104.14
  5. Step 5: Solve for x
    x = 100,574,104.14/10,668.60
  6. Step 6: Final answer
    x = 9,427.11

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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.