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Finding the Fourth Proportional to 6,668.64, 10,005.89 and 3,547.91

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Solution

The fourth proportional to 6,668.64, 10,005.89 and 3,547.91 is: 5,323.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.64 : 10,005.89 = 3,547.91 : x
  2. Step 2: Convert to fraction form
    6,668.64/10,005.89 = 3,547.91/x
  3. Step 3: Cross multiply
    6,668.64x = 10,005.89 × 3,547.91
  4. Step 4: Simplify right side
    6,668.64x = 35,500,031.07
  5. Step 5: Solve for x
    x = 35,500,031.07/6,668.64
  6. Step 6: Final answer
    x = 5,323.43

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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.