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Finding the Fourth Proportional to 55,928.80, 83,893.20 and 53,336.80

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Solution

The fourth proportional to 55,928.80, 83,893.20 and 53,336.80 is: 80,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,928.80 : 83,893.20 = 53,336.80 : x
  2. Step 2: Convert to fraction form
    55,928.80/83,893.20 = 53,336.80/x
  3. Step 3: Cross multiply
    55,928.80x = 83,893.20 × 53,336.80
  4. Step 4: Simplify right side
    55,928.80x = 4,474,594,829.76
  5. Step 5: Solve for x
    x = 4,474,594,829.76/55,928.80
  6. Step 6: Final answer
    x = 80,005.20

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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.