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Finding the Fourth Proportional to 12,848.41, 17,716.80 and 8,363.89

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Solution

The fourth proportional to 12,848.41, 17,716.80 and 8,363.89 is: 11,533.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,848.41 : 17,716.80 = 8,363.89 : x
  2. Step 2: Convert to fraction form
    12,848.41/17,716.80 = 8,363.89/x
  3. Step 3: Cross multiply
    12,848.41x = 17,716.80 × 8,363.89
  4. Step 4: Simplify right side
    12,848.41x = 148,181,366.35
  5. Step 5: Solve for x
    x = 148,181,366.35/12,848.41
  6. Step 6: Final answer
    x = 11,533.05

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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.