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Finding the Fourth Proportional to 43,604.70, 65,407.05 and 10,772.70

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Solution

The fourth proportional to 43,604.70, 65,407.05 and 10,772.70 is: 16,159.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,604.70 : 65,407.05 = 10,772.70 : x
  2. Step 2: Convert to fraction form
    43,604.70/65,407.05 = 10,772.70/x
  3. Step 3: Cross multiply
    43,604.70x = 65,407.05 × 10,772.70
  4. Step 4: Simplify right side
    43,604.70x = 704,610,527.54
  5. Step 5: Solve for x
    x = 704,610,527.54/43,604.70
  6. Step 6: Final answer
    x = 16,159.05

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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.