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Finding the Fourth Proportional to 43,605.18, 65,415.06 and 17,310.15

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Solution

The fourth proportional to 43,605.18, 65,415.06 and 17,310.15 is: 25,968.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,605.18 : 65,415.06 = 17,310.15 : x
  2. Step 2: Convert to fraction form
    43,605.18/65,415.06 = 17,310.15/x
  3. Step 3: Cross multiply
    43,605.18x = 65,415.06 × 17,310.15
  4. Step 4: Simplify right side
    43,605.18x = 1,132,344,500.86
  5. Step 5: Solve for x
    x = 1,132,344,500.86/43,605.18
  6. Step 6: Final answer
    x = 25,968.12

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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.