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Finding the Fourth Proportional to 55,657.44, 76,880.88 and 41,485.68

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Solution

The fourth proportional to 55,657.44, 76,880.88 and 41,485.68 is: 57,305.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,657.44 : 76,880.88 = 41,485.68 : x
  2. Step 2: Convert to fraction form
    55,657.44/76,880.88 = 41,485.68/x
  3. Step 3: Cross multiply
    55,657.44x = 76,880.88 × 41,485.68
  4. Step 4: Simplify right side
    55,657.44x = 3,189,455,585.80
  5. Step 5: Solve for x
    x = 3,189,455,585.80/55,657.44
  6. Step 6: Final answer
    x = 57,305.11

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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.