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Finding the Fourth Proportional to 43,801.12, 65,701.68 and 18,848.80

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Solution

The fourth proportional to 43,801.12, 65,701.68 and 18,848.80 is: 28,273.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,801.12 : 65,701.68 = 18,848.80 : x
  2. Step 2: Convert to fraction form
    43,801.12/65,701.68 = 18,848.80/x
  3. Step 3: Cross multiply
    43,801.12x = 65,701.68 × 18,848.80
  4. Step 4: Simplify right side
    43,801.12x = 1,238,397,825.98
  5. Step 5: Solve for x
    x = 1,238,397,825.98/43,801.12
  6. Step 6: Final answer
    x = 28,273.20

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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.