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Finding the Fourth Proportional to 28,094.98, 38,767.77 and 15,518.98

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Solution

The fourth proportional to 28,094.98, 38,767.77 and 15,518.98 is: 21,414.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,094.98 : 38,767.77 = 15,518.98 : x
  2. Step 2: Convert to fraction form
    28,094.98/38,767.77 = 15,518.98/x
  3. Step 3: Cross multiply
    28,094.98x = 38,767.77 × 15,518.98
  4. Step 4: Simplify right side
    28,094.98x = 601,636,247.27
  5. Step 5: Solve for x
    x = 601,636,247.27/28,094.98
  6. Step 6: Final answer
    x = 21,414.37

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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.