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Finding the Fourth Proportional to 14,969.88, 20,659.31 and 8,256.93

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Solution

The fourth proportional to 14,969.88, 20,659.31 and 8,256.93 is: 11,395.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,969.88 : 20,659.31 = 8,256.93 : x
  2. Step 2: Convert to fraction form
    14,969.88/20,659.31 = 8,256.93/x
  3. Step 3: Cross multiply
    14,969.88x = 20,659.31 × 8,256.93
  4. Step 4: Simplify right side
    14,969.88x = 170,582,435.23
  5. Step 5: Solve for x
    x = 170,582,435.23/14,969.88
  6. Step 6: Final answer
    x = 11,395.04

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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.