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Finding the Fourth Proportional to 13,328.25, 19,992.39 and 4,094.25

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Solution

The fourth proportional to 13,328.25, 19,992.39 and 4,094.25 is: 6,141.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.25 : 19,992.39 = 4,094.25 : x
  2. Step 2: Convert to fraction form
    13,328.25/19,992.39 = 4,094.25/x
  3. Step 3: Cross multiply
    13,328.25x = 19,992.39 × 4,094.25
  4. Step 4: Simplify right side
    13,328.25x = 81,853,842.76
  5. Step 5: Solve for x
    x = 81,853,842.76/13,328.25
  6. Step 6: Final answer
    x = 6,141.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.