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Finding the Fourth Proportional to 43,647.40, 65,454.90 and 17,346.70

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Solution

The fourth proportional to 43,647.40, 65,454.90 and 17,346.70 is: 26,013.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,647.40 : 65,454.90 = 17,346.70 : x
  2. Step 2: Convert to fraction form
    43,647.40/65,454.90 = 17,346.70/x
  3. Step 3: Cross multiply
    43,647.40x = 65,454.90 × 17,346.70
  4. Step 4: Simplify right side
    43,647.40x = 1,135,426,513.83
  5. Step 5: Solve for x
    x = 1,135,426,513.83/43,647.40
  6. Step 6: Final answer
    x = 26,013.61

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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.