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Finding the Fourth Proportional to 55,768.80, 83,653.20 and 53,349.60

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Solution

The fourth proportional to 55,768.80, 83,653.20 and 53,349.60 is: 80,024.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,768.80 : 83,653.20 = 53,349.60 : x
  2. Step 2: Convert to fraction form
    55,768.80/83,653.20 = 53,349.60/x
  3. Step 3: Cross multiply
    55,768.80x = 83,653.20 × 53,349.60
  4. Step 4: Simplify right side
    55,768.80x = 4,462,864,758.72
  5. Step 5: Solve for x
    x = 4,462,864,758.72/55,768.80
  6. Step 6: Final answer
    x = 80,024.40

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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.