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Finding the Fourth Proportional to 70,417.27, 105,625.91 and 17,826.67

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Solution

The fourth proportional to 70,417.27, 105,625.91 and 17,826.67 is: 26,740.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,417.27 : 105,625.91 = 17,826.67 : x
  2. Step 2: Convert to fraction form
    70,417.27/105,625.91 = 17,826.67/x
  3. Step 3: Cross multiply
    70,417.27x = 105,625.91 × 17,826.67
  4. Step 4: Simplify right side
    70,417.27x = 1,882,958,241.02
  5. Step 5: Solve for x
    x = 1,882,958,241.02/70,417.27
  6. Step 6: Final answer
    x = 26,740.01

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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.