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Finding the Fourth Proportional to 18,071.70, 27,076.71 and 12,797.95

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Solution

The fourth proportional to 18,071.70, 27,076.71 and 12,797.95 is: 19,175.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,071.70 : 27,076.71 = 12,797.95 : x
  2. Step 2: Convert to fraction form
    18,071.70/27,076.71 = 12,797.95/x
  3. Step 3: Cross multiply
    18,071.70x = 27,076.71 × 12,797.95
  4. Step 4: Simplify right side
    18,071.70x = 346,526,303.83
  5. Step 5: Solve for x
    x = 346,526,303.83/18,071.70
  6. Step 6: Final answer
    x = 19,175.08

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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.