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Finding the Fourth Proportional to 35,443.80, 48,912.12 and 19,310.76

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Solution

The fourth proportional to 35,443.80, 48,912.12 and 19,310.76 is: 26,648.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,443.80 : 48,912.12 = 19,310.76 : x
  2. Step 2: Convert to fraction form
    35,443.80/48,912.12 = 19,310.76/x
  3. Step 3: Cross multiply
    35,443.80x = 48,912.12 × 19,310.76
  4. Step 4: Simplify right side
    35,443.80x = 944,530,210.41
  5. Step 5: Solve for x
    x = 944,530,210.41/35,443.80
  6. Step 6: Final answer
    x = 26,648.67

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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.