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Finding the Fourth Proportional to 9,326.75, 12,866.33 and 5,548.70

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Solution

The fourth proportional to 9,326.75, 12,866.33 and 5,548.70 is: 7,654.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,326.75 : 12,866.33 = 5,548.70 : x
  2. Step 2: Convert to fraction form
    9,326.75/12,866.33 = 5,548.70/x
  3. Step 3: Cross multiply
    9,326.75x = 12,866.33 × 5,548.70
  4. Step 4: Simplify right side
    9,326.75x = 71,391,420.10
  5. Step 5: Solve for x
    x = 71,391,420.10/9,326.75
  6. Step 6: Final answer
    x = 7,654.48

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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.