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Finding the Fourth Proportional to 55,305.28, 82,958.70 and 13,752.28

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Solution

The fourth proportional to 55,305.28, 82,958.70 and 13,752.28 is: 20,628.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,305.28 : 82,958.70 = 13,752.28 : x
  2. Step 2: Convert to fraction form
    55,305.28/82,958.70 = 13,752.28/x
  3. Step 3: Cross multiply
    55,305.28x = 82,958.70 × 13,752.28
  4. Step 4: Simplify right side
    55,305.28x = 1,140,871,270.84
  5. Step 5: Solve for x
    x = 1,140,871,270.84/55,305.28
  6. Step 6: Final answer
    x = 20,628.61

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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.