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Finding the Fourth Proportional to 55,251.90, 82,877.76 and 13,698.90

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Solution

The fourth proportional to 55,251.90, 82,877.76 and 13,698.90 is: 20,548.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,251.90 : 82,877.76 = 13,698.90 : x
  2. Step 2: Convert to fraction form
    55,251.90/82,877.76 = 13,698.90/x
  3. Step 3: Cross multiply
    55,251.90x = 82,877.76 × 13,698.90
  4. Step 4: Simplify right side
    55,251.90x = 1,135,334,146.46
  5. Step 5: Solve for x
    x = 1,135,334,146.46/55,251.90
  6. Step 6: Final answer
    x = 20,548.33

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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.