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Finding the Fourth Proportional to 43,293.70, 64,908.87 and 13,694.98

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Solution

The fourth proportional to 43,293.70, 64,908.87 and 13,694.98 is: 20,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,293.70 : 64,908.87 = 13,694.98 : x
  2. Step 2: Convert to fraction form
    43,293.70/64,908.87 = 13,694.98/x
  3. Step 3: Cross multiply
    43,293.70x = 64,908.87 × 13,694.98
  4. Step 4: Simplify right side
    43,293.70x = 888,925,676.47
  5. Step 5: Solve for x
    x = 888,925,676.47/43,293.70
  6. Step 6: Final answer
    x = 20,532.45

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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.