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Finding the Fourth Proportional to 43,207.40, 64,811.10 and 36,865.10

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Solution

The fourth proportional to 43,207.40, 64,811.10 and 36,865.10 is: 55,297.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,207.40 : 64,811.10 = 36,865.10 : x
  2. Step 2: Convert to fraction form
    43,207.40/64,811.10 = 36,865.10/x
  3. Step 3: Cross multiply
    43,207.40x = 64,811.10 × 36,865.10
  4. Step 4: Simplify right side
    43,207.40x = 2,389,267,682.61
  5. Step 5: Solve for x
    x = 2,389,267,682.61/43,207.40
  6. Step 6: Final answer
    x = 55,297.65

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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.