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Finding the Fourth Proportional to 16,065.81, 24,056.80 and 12,928.68

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Solution

The fourth proportional to 16,065.81, 24,056.80 and 12,928.68 is: 19,359.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,065.81 : 24,056.80 = 12,928.68 : x
  2. Step 2: Convert to fraction form
    16,065.81/24,056.80 = 12,928.68/x
  3. Step 3: Cross multiply
    16,065.81x = 24,056.80 × 12,928.68
  4. Step 4: Simplify right side
    16,065.81x = 311,022,636.70
  5. Step 5: Solve for x
    x = 311,022,636.70/16,065.81
  6. Step 6: Final answer
    x = 19,359.29

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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.