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Finding the Fourth Proportional to 6,668.61, 9,203.22 and 3,684.71

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Solution

The fourth proportional to 6,668.61, 9,203.22 and 3,684.71 is: 5,085.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.61 : 9,203.22 = 3,684.71 : x
  2. Step 2: Convert to fraction form
    6,668.61/9,203.22 = 3,684.71/x
  3. Step 3: Cross multiply
    6,668.61x = 9,203.22 × 3,684.71
  4. Step 4: Simplify right side
    6,668.61x = 33,911,196.77
  5. Step 5: Solve for x
    x = 33,911,196.77/6,668.61
  6. Step 6: Final answer
    x = 5,085.20

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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.