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Finding the Fourth Proportional to 55,239.60, 82,859.40 and 50,962.80

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Solution

The fourth proportional to 55,239.60, 82,859.40 and 50,962.80 is: 76,444.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,239.60 : 82,859.40 = 50,962.80 : x
  2. Step 2: Convert to fraction form
    55,239.60/82,859.40 = 50,962.80/x
  3. Step 3: Cross multiply
    55,239.60x = 82,859.40 × 50,962.80
  4. Step 4: Simplify right side
    55,239.60x = 4,222,747,030.32
  5. Step 5: Solve for x
    x = 4,222,747,030.32/55,239.60
  6. Step 6: Final answer
    x = 76,444.20

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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.