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Finding the Fourth Proportional to 43,807.64, 65,713.62 and 12,217.64

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Solution

The fourth proportional to 43,807.64, 65,713.62 and 12,217.64 is: 18,327.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,807.64 : 65,713.62 = 12,217.64 : x
  2. Step 2: Convert to fraction form
    43,807.64/65,713.62 = 12,217.64/x
  3. Step 3: Cross multiply
    43,807.64x = 65,713.62 × 12,217.64
  4. Step 4: Simplify right side
    43,807.64x = 802,865,352.26
  5. Step 5: Solve for x
    x = 802,865,352.26/43,807.64
  6. Step 6: Final answer
    x = 18,327.06

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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.