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Finding the Fourth Proportional to 19,219.27, 28,828.95 and 5,368.27

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Solution

The fourth proportional to 19,219.27, 28,828.95 and 5,368.27 is: 8,052.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219.27 : 28,828.95 = 5,368.27 : x
  2. Step 2: Convert to fraction form
    19,219.27/28,828.95 = 5,368.27/x
  3. Step 3: Cross multiply
    19,219.27x = 28,828.95 × 5,368.27
  4. Step 4: Simplify right side
    19,219.27x = 154,761,515.34
  5. Step 5: Solve for x
    x = 154,761,515.34/19,219.27
  6. Step 6: Final answer
    x = 8,052.41

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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.