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Finding the Fourth Proportional to 55,504.80, 76,591.44 and 31,636.80

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Solution

The fourth proportional to 55,504.80, 76,591.44 and 31,636.80 is: 43,655.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,504.80 : 76,591.44 = 31,636.80 : x
  2. Step 2: Convert to fraction form
    55,504.80/76,591.44 = 31,636.80/x
  3. Step 3: Cross multiply
    55,504.80x = 76,591.44 × 31,636.80
  4. Step 4: Simplify right side
    55,504.80x = 2,423,108,068.99
  5. Step 5: Solve for x
    x = 2,423,108,068.99/55,504.80
  6. Step 6: Final answer
    x = 43,655.83

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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.