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Finding the Fourth Proportional to 47,673.48, 65,791.16 and 28,806.96

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Solution

The fourth proportional to 47,673.48, 65,791.16 and 28,806.96 is: 39,754.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,673.48 : 65,791.16 = 28,806.96 : x
  2. Step 2: Convert to fraction form
    47,673.48/65,791.16 = 28,806.96/x
  3. Step 3: Cross multiply
    47,673.48x = 65,791.16 × 28,806.96
  4. Step 4: Simplify right side
    47,673.48x = 1,895,243,314.47
  5. Step 5: Solve for x
    x = 1,895,243,314.47/47,673.48
  6. Step 6: Final answer
    x = 39,754.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.