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Finding the Fourth Proportional to 86,162.88, 129,303.60 and 33,572.64

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Solution

The fourth proportional to 86,162.88, 129,303.60 and 33,572.64 is: 50,382.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,162.88 : 129,303.60 = 33,572.64 : x
  2. Step 2: Convert to fraction form
    86,162.88/129,303.60 = 33,572.64/x
  3. Step 3: Cross multiply
    86,162.88x = 129,303.60 × 33,572.64
  4. Step 4: Simplify right side
    86,162.88x = 4,341,063,213.50
  5. Step 5: Solve for x
    x = 4,341,063,213.50/86,162.88
  6. Step 6: Final answer
    x = 50,382.06

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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.