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Finding the Fourth Proportional to 18,830.59, 28,246.08 and 5,683.07

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Solution

The fourth proportional to 18,830.59, 28,246.08 and 5,683.07 is: 8,524.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830.59 : 28,246.08 = 5,683.07 : x
  2. Step 2: Convert to fraction form
    18,830.59/28,246.08 = 5,683.07/x
  3. Step 3: Cross multiply
    18,830.59x = 28,246.08 × 5,683.07
  4. Step 4: Simplify right side
    18,830.59x = 160,524,449.87
  5. Step 5: Solve for x
    x = 160,524,449.87/18,830.59
  6. Step 6: Final answer
    x = 8,524.66

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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.