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Finding the Fourth Proportional to 6,668.60, 10,009.07 and 4,811.06

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Solution

The fourth proportional to 6,668.60, 10,009.07 and 4,811.06 is: 7,221.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.60 : 10,009.07 = 4,811.06 : x
  2. Step 2: Convert to fraction form
    6,668.60/10,009.07 = 4,811.06/x
  3. Step 3: Cross multiply
    6,668.60x = 10,009.07 × 4,811.06
  4. Step 4: Simplify right side
    6,668.60x = 48,154,162.21
  5. Step 5: Solve for x
    x = 48,154,162.21/6,668.60
  6. Step 6: Final answer
    x = 7,221.04

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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.