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Finding the Fourth Proportional to 29,295.30, 40,427.56 and 15,866.67

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Solution

The fourth proportional to 29,295.30, 40,427.56 and 15,866.67 is: 21,896.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,295.30 : 40,427.56 = 15,866.67 : x
  2. Step 2: Convert to fraction form
    29,295.30/40,427.56 = 15,866.67/x
  3. Step 3: Cross multiply
    29,295.30x = 40,427.56 × 15,866.67
  4. Step 4: Simplify right side
    29,295.30x = 641,450,608.21
  5. Step 5: Solve for x
    x = 641,450,608.21/29,295.30
  6. Step 6: Final answer
    x = 21,896.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.