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Finding the Fourth Proportional to 55,244.32, 82,441.79 and 54,928.78

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Solution

The fourth proportional to 55,244.32, 82,441.79 and 54,928.78 is: 81,970.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,244.32 : 82,441.79 = 54,928.78 : x
  2. Step 2: Convert to fraction form
    55,244.32/82,441.79 = 54,928.78/x
  3. Step 3: Cross multiply
    55,244.32x = 82,441.79 × 54,928.78
  4. Step 4: Simplify right side
    55,244.32x = 4,528,426,945.72
  5. Step 5: Solve for x
    x = 4,528,426,945.72/55,244.32
  6. Step 6: Final answer
    x = 81,970.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.