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Finding the Fourth Proportional to 55,858.97, 83,762.06 and 20,295.50

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Solution

The fourth proportional to 55,858.97, 83,762.06 and 20,295.50 is: 30,433.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,858.97 : 83,762.06 = 20,295.50 : x
  2. Step 2: Convert to fraction form
    55,858.97/83,762.06 = 20,295.50/x
  3. Step 3: Cross multiply
    55,858.97x = 83,762.06 × 20,295.50
  4. Step 4: Simplify right side
    55,858.97x = 1,699,992,368.44
  5. Step 5: Solve for x
    x = 1,699,992,368.44/55,858.97
  6. Step 6: Final answer
    x = 30,433.65

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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.