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Finding the Fourth Proportional to 11,874.15, 16,386.03 and 6,838.26

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Solution

The fourth proportional to 11,874.15, 16,386.03 and 6,838.26 is: 9,436.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,874.15 : 16,386.03 = 6,838.26 : x
  2. Step 2: Convert to fraction form
    11,874.15/16,386.03 = 6,838.26/x
  3. Step 3: Cross multiply
    11,874.15x = 16,386.03 × 6,838.26
  4. Step 4: Simplify right side
    11,874.15x = 112,051,933.51
  5. Step 5: Solve for x
    x = 112,051,933.51/11,874.15
  6. Step 6: Final answer
    x = 9,436.63

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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.