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Finding the Fourth Proportional to 15,668.01, 21,621.89 and 8,594.49

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Solution

The fourth proportional to 15,668.01, 21,621.89 and 8,594.49 is: 11,860.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,668.01 : 21,621.89 = 8,594.49 : x
  2. Step 2: Convert to fraction form
    15,668.01/21,621.89 = 8,594.49/x
  3. Step 3: Cross multiply
    15,668.01x = 21,621.89 × 8,594.49
  4. Step 4: Simplify right side
    15,668.01x = 185,829,074.41
  5. Step 5: Solve for x
    x = 185,829,074.41/15,668.01
  6. Step 6: Final answer
    x = 11,860.41

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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.