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Finding the Fourth Proportional to 34,842.70, 48,083.88 and 20,503.48

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Solution

The fourth proportional to 34,842.70, 48,083.88 and 20,503.48 is: 28,295.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,842.70 : 48,083.88 = 20,503.48 : x
  2. Step 2: Convert to fraction form
    34,842.70/48,083.88 = 20,503.48/x
  3. Step 3: Cross multiply
    34,842.70x = 48,083.88 × 20,503.48
  4. Step 4: Simplify right side
    34,842.70x = 985,886,871.90
  5. Step 5: Solve for x
    x = 985,886,871.90/34,842.70
  6. Step 6: Final answer
    x = 28,295.36

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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.