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Finding the Fourth Proportional to 55,441.98, 83,145.54 and 17,993.40

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Solution

The fourth proportional to 55,441.98, 83,145.54 and 17,993.40 is: 26,984.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,441.98 : 83,145.54 = 17,993.40 : x
  2. Step 2: Convert to fraction form
    55,441.98/83,145.54 = 17,993.40/x
  3. Step 3: Cross multiply
    55,441.98x = 83,145.54 × 17,993.40
  4. Step 4: Simplify right side
    55,441.98x = 1,496,070,959.44
  5. Step 5: Solve for x
    x = 1,496,070,959.44/55,441.98
  6. Step 6: Final answer
    x = 26,984.44

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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.