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Finding the Fourth Proportional to 70,763.39, 106,141.60 and 26,386.67

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Solution

The fourth proportional to 70,763.39, 106,141.60 and 26,386.67 is: 39,578.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,763.39 : 106,141.60 = 26,386.67 : x
  2. Step 2: Convert to fraction form
    70,763.39/106,141.60 = 26,386.67/x
  3. Step 3: Cross multiply
    70,763.39x = 106,141.60 × 26,386.67
  4. Step 4: Simplify right side
    70,763.39x = 2,800,723,372.47
  5. Step 5: Solve for x
    x = 2,800,723,372.47/70,763.39
  6. Step 6: Final answer
    x = 39,578.71

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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.