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Finding the Fourth Proportional to 55,302.80, 82,954.52 and 13,749.80

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Solution

The fourth proportional to 55,302.80, 82,954.52 and 13,749.80 is: 20,624.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,302.80 : 82,954.52 = 13,749.80 : x
  2. Step 2: Convert to fraction form
    55,302.80/82,954.52 = 13,749.80/x
  3. Step 3: Cross multiply
    55,302.80x = 82,954.52 × 13,749.80
  4. Step 4: Simplify right side
    55,302.80x = 1,140,607,575.57
  5. Step 5: Solve for x
    x = 1,140,607,575.57/55,302.80
  6. Step 6: Final answer
    x = 20,624.77

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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.