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Finding the Fourth Proportional to 43,998.90, 65,998.35 and 29,127.30

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Solution

The fourth proportional to 43,998.90, 65,998.35 and 29,127.30 is: 43,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,998.90 : 65,998.35 = 29,127.30 : x
  2. Step 2: Convert to fraction form
    43,998.90/65,998.35 = 29,127.30/x
  3. Step 3: Cross multiply
    43,998.90x = 65,998.35 × 29,127.30
  4. Step 4: Simplify right side
    43,998.90x = 1,922,353,739.96
  5. Step 5: Solve for x
    x = 1,922,353,739.96/43,998.90
  6. Step 6: Final answer
    x = 43,690.95

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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.