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Finding the Fourth Proportional to 9,992.49, 13,847.93 and 9,851.55

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Solution

The fourth proportional to 9,992.49, 13,847.93 and 9,851.55 is: 13,652.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992.49 : 13,847.93 = 9,851.55 : x
  2. Step 2: Convert to fraction form
    9,992.49/13,847.93 = 9,851.55/x
  3. Step 3: Cross multiply
    9,992.49x = 13,847.93 × 9,851.55
  4. Step 4: Simplify right side
    9,992.49x = 136,423,525.53
  5. Step 5: Solve for x
    x = 136,423,525.53/9,992.49
  6. Step 6: Final answer
    x = 13,652.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.