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Finding the Fourth Proportional to 43,471.62, 65,210.91 and 13,893.66

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Solution

The fourth proportional to 43,471.62, 65,210.91 and 13,893.66 is: 20,841.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,471.62 : 65,210.91 = 13,893.66 : x
  2. Step 2: Convert to fraction form
    43,471.62/65,210.91 = 13,893.66/x
  3. Step 3: Cross multiply
    43,471.62x = 65,210.91 × 13,893.66
  4. Step 4: Simplify right side
    43,471.62x = 906,018,211.83
  5. Step 5: Solve for x
    x = 906,018,211.83/43,471.62
  6. Step 6: Final answer
    x = 20,841.60

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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.