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Finding the Fourth Proportional to 28,244.70, 38,963.07 and 19,166.94

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Solution

The fourth proportional to 28,244.70, 38,963.07 and 19,166.94 is: 26,440.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,244.70 : 38,963.07 = 19,166.94 : x
  2. Step 2: Convert to fraction form
    28,244.70/38,963.07 = 19,166.94/x
  3. Step 3: Cross multiply
    28,244.70x = 38,963.07 × 19,166.94
  4. Step 4: Simplify right side
    28,244.70x = 746,802,824.91
  5. Step 5: Solve for x
    x = 746,802,824.91/28,244.70
  6. Step 6: Final answer
    x = 26,440.46

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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.