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Finding the Fourth Proportional to 86,813.58, 130,225.44 and 33,505.86

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Solution

The fourth proportional to 86,813.58, 130,225.44 and 33,505.86 is: 50,260.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,813.58 : 130,225.44 = 33,505.86 : x
  2. Step 2: Convert to fraction form
    86,813.58/130,225.44 = 33,505.86/x
  3. Step 3: Cross multiply
    86,813.58x = 130,225.44 × 33,505.86
  4. Step 4: Simplify right side
    86,813.58x = 4,363,315,361.08
  5. Step 5: Solve for x
    x = 4,363,315,361.08/86,813.58
  6. Step 6: Final answer
    x = 50,260.75

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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.