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Finding the Fourth Proportional to 43,765.40, 65,651.54 and 21,566.67

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Solution

The fourth proportional to 43,765.40, 65,651.54 and 21,566.67 is: 32,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,765.40 : 65,651.54 = 21,566.67 : x
  2. Step 2: Convert to fraction form
    43,765.40/65,651.54 = 21,566.67/x
  3. Step 3: Cross multiply
    43,765.40x = 65,651.54 × 21,566.67
  4. Step 4: Simplify right side
    43,765.40x = 1,415,884,990.34
  5. Step 5: Solve for x
    x = 1,415,884,990.34/43,765.40
  6. Step 6: Final answer
    x = 32,351.70

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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.