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Finding the Fourth Proportional to 55,620.99, 83,237.49 and 45,508.86

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Solution

The fourth proportional to 55,620.99, 83,237.49 and 45,508.86 is: 68,104.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,620.99 : 83,237.49 = 45,508.86 : x
  2. Step 2: Convert to fraction form
    55,620.99/83,237.49 = 45,508.86/x
  3. Step 3: Cross multiply
    55,620.99x = 83,237.49 × 45,508.86
  4. Step 4: Simplify right side
    55,620.99x = 3,788,043,279.16
  5. Step 5: Solve for x
    x = 3,788,043,279.16/55,620.99
  6. Step 6: Final answer
    x = 68,104.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.