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Finding the Fourth Proportional to 43,348.50, 65,022.75 and 10,516.50

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Solution

The fourth proportional to 43,348.50, 65,022.75 and 10,516.50 is: 15,774.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,348.50 : 65,022.75 = 10,516.50 : x
  2. Step 2: Convert to fraction form
    43,348.50/65,022.75 = 10,516.50/x
  3. Step 3: Cross multiply
    43,348.50x = 65,022.75 × 10,516.50
  4. Step 4: Simplify right side
    43,348.50x = 683,811,750.38
  5. Step 5: Solve for x
    x = 683,811,750.38/43,348.50
  6. Step 6: Final answer
    x = 15,774.75

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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.