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Finding the Fourth Proportional to 15,077.84, 22,618.67 and 5,721.12

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Solution

The fourth proportional to 15,077.84, 22,618.67 and 5,721.12 is: 8,582.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077.84 : 22,618.67 = 5,721.12 : x
  2. Step 2: Convert to fraction form
    15,077.84/22,618.67 = 5,721.12/x
  3. Step 3: Cross multiply
    15,077.84x = 22,618.67 × 5,721.12
  4. Step 4: Simplify right side
    15,077.84x = 129,404,096.70
  5. Step 5: Solve for x
    x = 129,404,096.70/15,077.84
  6. Step 6: Final answer
    x = 8,582.41

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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.