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Finding the Fourth Proportional to 14,985.56, 20,668.34 and 9,608.49

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Solution

The fourth proportional to 14,985.56, 20,668.34 and 9,608.49 is: 13,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985.56 : 20,668.34 = 9,608.49 : x
  2. Step 2: Convert to fraction form
    14,985.56/20,668.34 = 9,608.49/x
  3. Step 3: Cross multiply
    14,985.56x = 20,668.34 × 9,608.49
  4. Step 4: Simplify right side
    14,985.56x = 198,591,490.16
  5. Step 5: Solve for x
    x = 198,591,490.16/14,985.56
  6. Step 6: Final answer
    x = 13,252.19

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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.