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Finding the Fourth Proportional to 55,180.60, 82,740.64 and 21,866.92

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Solution

The fourth proportional to 55,180.60, 82,740.64 and 21,866.92 is: 32,788.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,180.60 : 82,740.64 = 21,866.92 : x
  2. Step 2: Convert to fraction form
    55,180.60/82,740.64 = 21,866.92/x
  3. Step 3: Cross multiply
    55,180.60x = 82,740.64 × 21,866.92
  4. Step 4: Simplify right side
    55,180.60x = 1,809,282,955.63
  5. Step 5: Solve for x
    x = 1,809,282,955.63/55,180.60
  6. Step 6: Final answer
    x = 32,788.39

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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.