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Finding the Fourth Proportional to 14,969.93, 20,658.24 and 8,256.20

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Solution

The fourth proportional to 14,969.93, 20,658.24 and 8,256.20 is: 11,393.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,969.93 : 20,658.24 = 8,256.20 : x
  2. Step 2: Convert to fraction form
    14,969.93/20,658.24 = 8,256.20/x
  3. Step 3: Cross multiply
    14,969.93x = 20,658.24 × 8,256.20
  4. Step 4: Simplify right side
    14,969.93x = 170,558,457.80
  5. Step 5: Solve for x
    x = 170,558,457.80/14,969.93
  6. Step 6: Final answer
    x = 11,393.41

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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.