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Finding the Fourth Proportional to 55,135.44, 82,698.68 and 17,685.44

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Solution

The fourth proportional to 55,135.44, 82,698.68 and 17,685.44 is: 26,526.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,135.44 : 82,698.68 = 17,685.44 : x
  2. Step 2: Convert to fraction form
    55,135.44/82,698.68 = 17,685.44/x
  3. Step 3: Cross multiply
    55,135.44x = 82,698.68 × 17,685.44
  4. Step 4: Simplify right side
    55,135.44x = 1,462,562,543.22
  5. Step 5: Solve for x
    x = 1,462,562,543.22/55,135.44
  6. Step 6: Final answer
    x = 26,526.72

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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.