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Finding the Fourth Proportional to 55,210.64, 82,815.95 and 36,486.27

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Solution

The fourth proportional to 55,210.64, 82,815.95 and 36,486.27 is: 54,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,210.64 : 82,815.95 = 36,486.27 : x
  2. Step 2: Convert to fraction form
    55,210.64/82,815.95 = 36,486.27/x
  3. Step 3: Cross multiply
    55,210.64x = 82,815.95 × 36,486.27
  4. Step 4: Simplify right side
    55,210.64x = 3,021,645,203.22
  5. Step 5: Solve for x
    x = 3,021,645,203.22/55,210.64
  6. Step 6: Final answer
    x = 54,729.41

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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.