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Finding the Fourth Proportional to 64,628.55, 96,903.14 and 25,139.70

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Solution

The fourth proportional to 64,628.55, 96,903.14 and 25,139.70 is: 37,694.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,628.55 : 96,903.14 = 25,139.70 : x
  2. Step 2: Convert to fraction form
    64,628.55/96,903.14 = 25,139.70/x
  3. Step 3: Cross multiply
    64,628.55x = 96,903.14 × 25,139.70
  4. Step 4: Simplify right side
    64,628.55x = 2,436,115,742.96
  5. Step 5: Solve for x
    x = 2,436,115,742.96/64,628.55
  6. Step 6: Final answer
    x = 37,694.11

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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.