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Finding the Fourth Proportional to 12,874.72, 17,752.08 and 11,941.60

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Solution

The fourth proportional to 12,874.72, 17,752.08 and 11,941.60 is: 16,465.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,874.72 : 17,752.08 = 11,941.60 : x
  2. Step 2: Convert to fraction form
    12,874.72/17,752.08 = 11,941.60/x
  3. Step 3: Cross multiply
    12,874.72x = 17,752.08 × 11,941.60
  4. Step 4: Simplify right side
    12,874.72x = 211,988,238.53
  5. Step 5: Solve for x
    x = 211,988,238.53/12,874.72
  6. Step 6: Final answer
    x = 16,465.46

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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.