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Finding the Fourth Proportional to 70,035.81, 105,054.60 and 23,288.69

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Solution

The fourth proportional to 70,035.81, 105,054.60 and 23,288.69 is: 34,933.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,035.81 : 105,054.60 = 23,288.69 : x
  2. Step 2: Convert to fraction form
    70,035.81/105,054.60 = 23,288.69/x
  3. Step 3: Cross multiply
    70,035.81x = 105,054.60 × 23,288.69
  4. Step 4: Simplify right side
    70,035.81x = 2,446,583,487.20
  5. Step 5: Solve for x
    x = 2,446,583,487.20/70,035.81
  6. Step 6: Final answer
    x = 34,933.32

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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.