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Finding the Fourth Proportional to 16,615.70, 24,923.55 and 12,929.30

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Solution

The fourth proportional to 16,615.70, 24,923.55 and 12,929.30 is: 19,393.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,615.70 : 24,923.55 = 12,929.30 : x
  2. Step 2: Convert to fraction form
    16,615.70/24,923.55 = 12,929.30/x
  3. Step 3: Cross multiply
    16,615.70x = 24,923.55 × 12,929.30
  4. Step 4: Simplify right side
    16,615.70x = 322,244,055.02
  5. Step 5: Solve for x
    x = 322,244,055.02/16,615.70
  6. Step 6: Final answer
    x = 19,393.95

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Similar ratio
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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.