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Finding the Fourth Proportional to 36,498.80, 54,735.40 and 18,962.80

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Solution

The fourth proportional to 36,498.80, 54,735.40 and 18,962.80 is: 28,437.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,498.80 : 54,735.40 = 18,962.80 : x
  2. Step 2: Convert to fraction form
    36,498.80/54,735.40 = 18,962.80/x
  3. Step 3: Cross multiply
    36,498.80x = 54,735.40 × 18,962.80
  4. Step 4: Simplify right side
    36,498.80x = 1,037,936,443.12
  5. Step 5: Solve for x
    x = 1,037,936,443.12/36,498.80
  6. Step 6: Final answer
    x = 28,437.55

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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.