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Finding the Fourth Proportional to 9,992.88, 13,848.48 and 9,851.94

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Solution

The fourth proportional to 9,992.88, 13,848.48 and 9,851.94 is: 13,653.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992.88 : 13,848.48 = 9,851.94 : x
  2. Step 2: Convert to fraction form
    9,992.88/13,848.48 = 9,851.94/x
  3. Step 3: Cross multiply
    9,992.88x = 13,848.48 × 9,851.94
  4. Step 4: Simplify right side
    9,992.88x = 136,434,394.05
  5. Step 5: Solve for x
    x = 136,434,394.05/9,992.88
  6. Step 6: Final answer
    x = 13,653.16

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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.