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Finding the Fourth Proportional to 19,596.40, 27,042.66 and 11,098.40

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Solution

The fourth proportional to 19,596.40, 27,042.66 and 11,098.40 is: 15,315.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,596.40 : 27,042.66 = 11,098.40 : x
  2. Step 2: Convert to fraction form
    19,596.40/27,042.66 = 11,098.40/x
  3. Step 3: Cross multiply
    19,596.40x = 27,042.66 × 11,098.40
  4. Step 4: Simplify right side
    19,596.40x = 300,130,122.53
  5. Step 5: Solve for x
    x = 300,130,122.53/19,596.40
  6. Step 6: Final answer
    x = 15,315.58

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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.