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Finding the Fourth Proportional to 12,374.98, 17,078.25 and 6,785.98

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Solution

The fourth proportional to 12,374.98, 17,078.25 and 6,785.98 is: 9,365.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,374.98 : 17,078.25 = 6,785.98 : x
  2. Step 2: Convert to fraction form
    12,374.98/17,078.25 = 6,785.98/x
  3. Step 3: Cross multiply
    12,374.98x = 17,078.25 × 6,785.98
  4. Step 4: Simplify right side
    12,374.98x = 115,892,662.94
  5. Step 5: Solve for x
    x = 115,892,662.94/12,374.98
  6. Step 6: Final answer
    x = 9,365.08

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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.