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Finding the Fourth Proportional to 14,990.78, 22,484.06 and 8,238.47

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Solution

The fourth proportional to 14,990.78, 22,484.06 and 8,238.47 is: 12,356.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990.78 : 22,484.06 = 8,238.47 : x
  2. Step 2: Convert to fraction form
    14,990.78/22,484.06 = 8,238.47/x
  3. Step 3: Cross multiply
    14,990.78x = 22,484.06 × 8,238.47
  4. Step 4: Simplify right side
    14,990.78x = 185,234,212.60
  5. Step 5: Solve for x
    x = 185,234,212.60/14,990.78
  6. Step 6: Final answer
    x = 12,356.54

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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.