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Finding the Fourth Proportional to 34,829.48, 48,047.64 and 20,672.30

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Solution

The fourth proportional to 34,829.48, 48,047.64 and 20,672.30 is: 28,517.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,829.48 : 48,047.64 = 20,672.30 : x
  2. Step 2: Convert to fraction form
    34,829.48/48,047.64 = 20,672.30/x
  3. Step 3: Cross multiply
    34,829.48x = 48,047.64 × 20,672.30
  4. Step 4: Simplify right side
    34,829.48x = 993,255,228.37
  5. Step 5: Solve for x
    x = 993,255,228.37/34,829.48
  6. Step 6: Final answer
    x = 28,517.66

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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.