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Finding the Fourth Proportional to 12,725.61, 19,088.41 and 6,893.61

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Solution

The fourth proportional to 12,725.61, 19,088.41 and 6,893.61 is: 10,340.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,725.61 : 19,088.41 = 6,893.61 : x
  2. Step 2: Convert to fraction form
    12,725.61/19,088.41 = 6,893.61/x
  3. Step 3: Cross multiply
    12,725.61x = 19,088.41 × 6,893.61
  4. Step 4: Simplify right side
    12,725.61x = 131,588,054.06
  5. Step 5: Solve for x
    x = 131,588,054.06/12,725.61
  6. Step 6: Final answer
    x = 10,340.41

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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.