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Finding the Fourth Proportional to 70,637.88, 105,954.09 and 23,890.76

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Solution

The fourth proportional to 70,637.88, 105,954.09 and 23,890.76 is: 35,835.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,637.88 : 105,954.09 = 23,890.76 : x
  2. Step 2: Convert to fraction form
    70,637.88/105,954.09 = 23,890.76/x
  3. Step 3: Cross multiply
    70,637.88x = 105,954.09 × 23,890.76
  4. Step 4: Simplify right side
    70,637.88x = 2,531,323,735.21
  5. Step 5: Solve for x
    x = 2,531,323,735.21/70,637.88
  6. Step 6: Final answer
    x = 35,835.22

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1.5x scale

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.