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Finding the Fourth Proportional to 28,096.38, 38,773 and 15,521.94

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Solution

The fourth proportional to 28,096.38, 38,773 and 15,521.94 is: 21,420.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,096.38 : 38,773 = 15,521.94 : x
  2. Step 2: Convert to fraction form
    28,096.38/38,773 = 15,521.94/x
  3. Step 3: Cross multiply
    28,096.38x = 38,773 × 15,521.94
  4. Step 4: Simplify right side
    28,096.38x = 601,832,179.62
  5. Step 5: Solve for x
    x = 601,832,179.62/28,096.38
  6. Step 6: Final answer
    x = 21,420.27

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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.