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Finding the Fourth Proportional to 86,035.32, 129,060.96 and 33,448.80

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Solution

The fourth proportional to 86,035.32, 129,060.96 and 33,448.80 is: 50,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,035.32 : 129,060.96 = 33,448.80 : x
  2. Step 2: Convert to fraction form
    86,035.32/129,060.96 = 33,448.80/x
  3. Step 3: Cross multiply
    86,035.32x = 129,060.96 × 33,448.80
  4. Step 4: Simplify right side
    86,035.32x = 4,316,934,238.85
  5. Step 5: Solve for x
    x = 4,316,934,238.85/86,035.32
  6. Step 6: Final answer
    x = 50,176.30

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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.