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Finding the Fourth Proportional to 55,314.80, 83,015.40 and 25,736.30

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Solution

The fourth proportional to 55,314.80, 83,015.40 and 25,736.30 is: 38,624.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,314.80 : 83,015.40 = 25,736.30 : x
  2. Step 2: Convert to fraction form
    55,314.80/83,015.40 = 25,736.30/x
  3. Step 3: Cross multiply
    55,314.80x = 83,015.40 × 25,736.30
  4. Step 4: Simplify right side
    55,314.80x = 2,136,509,239.02
  5. Step 5: Solve for x
    x = 2,136,509,239.02/55,314.80
  6. Step 6: Final answer
    x = 38,624.55

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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.