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Finding the Fourth Proportional to 12,305.16, 18,402.84 and 10,927.44

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Solution

The fourth proportional to 12,305.16, 18,402.84 and 10,927.44 is: 16,342.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.16 : 18,402.84 = 10,927.44 : x
  2. Step 2: Convert to fraction form
    12,305.16/18,402.84 = 10,927.44/x
  3. Step 3: Cross multiply
    12,305.16x = 18,402.84 × 10,927.44
  4. Step 4: Simplify right side
    12,305.16x = 201,095,929.93
  5. Step 5: Solve for x
    x = 201,095,929.93/12,305.16
  6. Step 6: Final answer
    x = 16,342.41

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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.