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Finding the Fourth Proportional to 14,704.47, 20,292 and 7,989.96

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Solution

The fourth proportional to 14,704.47, 20,292 and 7,989.96 is: 11,026.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,704.47 : 20,292 = 7,989.96 : x
  2. Step 2: Convert to fraction form
    14,704.47/20,292 = 7,989.96/x
  3. Step 3: Cross multiply
    14,704.47x = 20,292 × 7,989.96
  4. Step 4: Simplify right side
    14,704.47x = 162,132,268.32
  5. Step 5: Solve for x
    x = 162,132,268.32/14,704.47
  6. Step 6: Final answer
    x = 11,026.05

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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.