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Finding the Fourth Proportional to 13,347.73, 20,020.23 and 3,485.73

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Solution

The fourth proportional to 13,347.73, 20,020.23 and 3,485.73 is: 5,228.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.73 : 20,020.23 = 3,485.73 : x
  2. Step 2: Convert to fraction form
    13,347.73/20,020.23 = 3,485.73/x
  3. Step 3: Cross multiply
    13,347.73x = 20,020.23 × 3,485.73
  4. Step 4: Simplify right side
    13,347.73x = 69,785,116.32
  5. Step 5: Solve for x
    x = 69,785,116.32/13,347.73
  6. Step 6: Final answer
    x = 5,228.24

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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.