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Finding the Fourth Proportional to 19,648.61, 27,115.08 and 10,696.17

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Solution

The fourth proportional to 19,648.61, 27,115.08 and 10,696.17 is: 14,760.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,648.61 : 27,115.08 = 10,696.17 : x
  2. Step 2: Convert to fraction form
    19,648.61/27,115.08 = 10,696.17/x
  3. Step 3: Cross multiply
    19,648.61x = 27,115.08 × 10,696.17
  4. Step 4: Simplify right side
    19,648.61x = 290,027,519.55
  5. Step 5: Solve for x
    x = 290,027,519.55/19,648.61
  6. Step 6: Final answer
    x = 14,760.72

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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.