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Finding the Fourth Proportional to 70,030.80, 104,983.02 and 25,626.60

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Solution

The fourth proportional to 70,030.80, 104,983.02 and 25,626.60 is: 38,416.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,030.80 : 104,983.02 = 25,626.60 : x
  2. Step 2: Convert to fraction form
    70,030.80/104,983.02 = 25,626.60/x
  3. Step 3: Cross multiply
    70,030.80x = 104,983.02 × 25,626.60
  4. Step 4: Simplify right side
    70,030.80x = 2,690,357,860.33
  5. Step 5: Solve for x
    x = 2,690,357,860.33/70,030.80
  6. Step 6: Final answer
    x = 38,416.78

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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.