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Finding the Fourth Proportional to 8,141.29, 11,235 and 4,415.29

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Solution

The fourth proportional to 8,141.29, 11,235 and 4,415.29 is: 6,093.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,141.29 : 11,235 = 4,415.29 : x
  2. Step 2: Convert to fraction form
    8,141.29/11,235 = 4,415.29/x
  3. Step 3: Cross multiply
    8,141.29x = 11,235 × 4,415.29
  4. Step 4: Simplify right side
    8,141.29x = 49,605,783.15
  5. Step 5: Solve for x
    x = 49,605,783.15/8,141.29
  6. Step 6: Final answer
    x = 6,093.11

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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.