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Finding the Fourth Proportional to 15,874.65, 23,819.26 and 15,612.21

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Solution

The fourth proportional to 15,874.65, 23,819.26 and 15,612.21 is: 23,425.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,874.65 : 23,819.26 = 15,612.21 : x
  2. Step 2: Convert to fraction form
    15,874.65/23,819.26 = 15,612.21/x
  3. Step 3: Cross multiply
    15,874.65x = 23,819.26 × 15,612.21
  4. Step 4: Simplify right side
    15,874.65x = 371,871,092.01
  5. Step 5: Solve for x
    x = 371,871,092.01/15,874.65
  6. Step 6: Final answer
    x = 23,425.47

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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.