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Finding the Fourth Proportional to 28,896.67, 43,369.71 and 20,597.01

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Solution

The fourth proportional to 28,896.67, 43,369.71 and 20,597.01 is: 30,913.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,896.67 : 43,369.71 = 20,597.01 : x
  2. Step 2: Convert to fraction form
    28,896.67/43,369.71 = 20,597.01/x
  3. Step 3: Cross multiply
    28,896.67x = 43,369.71 × 20,597.01
  4. Step 4: Simplify right side
    28,896.67x = 893,286,350.57
  5. Step 5: Solve for x
    x = 893,286,350.57/28,896.67
  6. Step 6: Final answer
    x = 30,913.12

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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.