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Finding the Fourth Proportional to 14,507.34, 20,015.34 and 8,133

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Solution

The fourth proportional to 14,507.34, 20,015.34 and 8,133 is: 11,220.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,507.34 : 20,015.34 = 8,133 : x
  2. Step 2: Convert to fraction form
    14,507.34/20,015.34 = 8,133/x
  3. Step 3: Cross multiply
    14,507.34x = 20,015.34 × 8,133
  4. Step 4: Simplify right side
    14,507.34x = 162,784,760.22
  5. Step 5: Solve for x
    x = 162,784,760.22/14,507.34
  6. Step 6: Final answer
    x = 11,220.86

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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.