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Finding the Fourth Proportional to 12,326.64, 17,000.82 and 7,848.96

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Solution

The fourth proportional to 12,326.64, 17,000.82 and 7,848.96 is: 10,825.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326.64 : 17,000.82 = 7,848.96 : x
  2. Step 2: Convert to fraction form
    12,326.64/17,000.82 = 7,848.96/x
  3. Step 3: Cross multiply
    12,326.64x = 17,000.82 × 7,848.96
  4. Step 4: Simplify right side
    12,326.64x = 133,438,756.15
  5. Step 5: Solve for x
    x = 133,438,756.15/12,326.64
  6. Step 6: Final answer
    x = 10,825.23

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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.