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Finding the Fourth Proportional to 19,158.84, 28,738.28 and 6,012.24

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Solution

The fourth proportional to 19,158.84, 28,738.28 and 6,012.24 is: 9,018.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,158.84 : 28,738.28 = 6,012.24 : x
  2. Step 2: Convert to fraction form
    19,158.84/28,738.28 = 6,012.24/x
  3. Step 3: Cross multiply
    19,158.84x = 28,738.28 × 6,012.24
  4. Step 4: Simplify right side
    19,158.84x = 172,781,436.55
  5. Step 5: Solve for x
    x = 172,781,436.55/19,158.84
  6. Step 6: Final answer
    x = 9,018.37

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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.