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Finding the Fourth Proportional to 24,658.94, 36,991.66 and 12,972.80

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Solution

The fourth proportional to 24,658.94, 36,991.66 and 12,972.80 is: 19,460.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,658.94 : 36,991.66 = 12,972.80 : x
  2. Step 2: Convert to fraction form
    24,658.94/36,991.66 = 12,972.80/x
  3. Step 3: Cross multiply
    24,658.94x = 36,991.66 × 12,972.80
  4. Step 4: Simplify right side
    24,658.94x = 479,885,406.85
  5. Step 5: Solve for x
    x = 479,885,406.85/24,658.94
  6. Step 6: Final answer
    x = 19,460.91

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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.