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Finding the Fourth Proportional to 15,668.67, 21,623.04 and 8,595.08

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Solution

The fourth proportional to 15,668.67, 21,623.04 and 8,595.08 is: 11,861.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,668.67 : 21,623.04 = 8,595.08 : x
  2. Step 2: Convert to fraction form
    15,668.67/21,623.04 = 8,595.08/x
  3. Step 3: Cross multiply
    15,668.67x = 21,623.04 × 8,595.08
  4. Step 4: Simplify right side
    15,668.67x = 185,851,650.53
  5. Step 5: Solve for x
    x = 185,851,650.53/15,668.67
  6. Step 6: Final answer
    x = 11,861.35

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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.