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Finding the Fourth Proportional to 16,448.61, 22,698.05 and 9,278.49

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Solution

The fourth proportional to 16,448.61, 22,698.05 and 9,278.49 is: 12,803.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,448.61 : 22,698.05 = 9,278.49 : x
  2. Step 2: Convert to fraction form
    16,448.61/22,698.05 = 9,278.49/x
  3. Step 3: Cross multiply
    16,448.61x = 22,698.05 × 9,278.49
  4. Step 4: Simplify right side
    16,448.61x = 210,603,583.55
  5. Step 5: Solve for x
    x = 210,603,583.55/16,448.61
  6. Step 6: Final answer
    x = 12,803.73

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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.