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Finding the Fourth Proportional to 28,038.26, 38,694.04 and 16,105.34

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Solution

The fourth proportional to 28,038.26, 38,694.04 and 16,105.34 is: 22,226.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,038.26 : 38,694.04 = 16,105.34 : x
  2. Step 2: Convert to fraction form
    28,038.26/38,694.04 = 16,105.34/x
  3. Step 3: Cross multiply
    28,038.26x = 38,694.04 × 16,105.34
  4. Step 4: Simplify right side
    28,038.26x = 623,180,726.65
  5. Step 5: Solve for x
    x = 623,180,726.65/28,038.26
  6. Step 6: Final answer
    x = 22,226.08

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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.