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Finding the Fourth Proportional to 70,637.85, 105,890.90 and 23,858.01

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Solution

The fourth proportional to 70,637.85, 105,890.90 and 23,858.01 is: 35,764.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,637.85 : 105,890.90 = 23,858.01 : x
  2. Step 2: Convert to fraction form
    70,637.85/105,890.90 = 23,858.01/x
  3. Step 3: Cross multiply
    70,637.85x = 105,890.90 × 23,858.01
  4. Step 4: Simplify right side
    70,637.85x = 2,526,346,031.82
  5. Step 5: Solve for x
    x = 2,526,346,031.82/70,637.85
  6. Step 6: Final answer
    x = 35,764.76

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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.