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Finding the Fourth Proportional to 14,796.72, 20,417.52 and 8,829.12

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Solution

The fourth proportional to 14,796.72, 20,417.52 and 8,829.12 is: 12,183.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,796.72 : 20,417.52 = 8,829.12 : x
  2. Step 2: Convert to fraction form
    14,796.72/20,417.52 = 8,829.12/x
  3. Step 3: Cross multiply
    14,796.72x = 20,417.52 × 8,829.12
  4. Step 4: Simplify right side
    14,796.72x = 180,268,734.18
  5. Step 5: Solve for x
    x = 180,268,734.18/14,796.72
  6. Step 6: Final answer
    x = 12,183.02

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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.