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Finding the Fourth Proportional to 12,599.88, 18,894.27 and 4,803.21

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Solution

The fourth proportional to 12,599.88, 18,894.27 and 4,803.21 is: 7,202.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,599.88 : 18,894.27 = 4,803.21 : x
  2. Step 2: Convert to fraction form
    12,599.88/18,894.27 = 4,803.21/x
  3. Step 3: Cross multiply
    12,599.88x = 18,894.27 × 4,803.21
  4. Step 4: Simplify right side
    12,599.88x = 90,753,146.61
  5. Step 5: Solve for x
    x = 90,753,146.61/12,599.88
  6. Step 6: Final answer
    x = 7,202.70

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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.