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Finding the Fourth Proportional to 47,683.99, 65,797.17 and 28,559.28

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Solution

The fourth proportional to 47,683.99, 65,797.17 and 28,559.28 is: 39,407.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,683.99 : 65,797.17 = 28,559.28 : x
  2. Step 2: Convert to fraction form
    47,683.99/65,797.17 = 28,559.28/x
  3. Step 3: Cross multiply
    47,683.99x = 65,797.17 × 28,559.28
  4. Step 4: Simplify right side
    47,683.99x = 1,879,119,801.24
  5. Step 5: Solve for x
    x = 1,879,119,801.24/47,683.99
  6. Step 6: Final answer
    x = 39,407.78

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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.