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Finding the Fourth Proportional to 70,615.60, 105,923.33 and 18,025.10

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Solution

The fourth proportional to 70,615.60, 105,923.33 and 18,025.10 is: 27,037.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,615.60 : 105,923.33 = 18,025.10 : x
  2. Step 2: Convert to fraction form
    70,615.60/105,923.33 = 18,025.10/x
  3. Step 3: Cross multiply
    70,615.60x = 105,923.33 × 18,025.10
  4. Step 4: Simplify right side
    70,615.60x = 1,909,278,460.65
  5. Step 5: Solve for x
    x = 1,909,278,460.65/70,615.60
  6. Step 6: Final answer
    x = 27,037.63

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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.