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Finding the Fourth Proportional to 86,404.32, 129,602.16 and 33,823.44

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Solution

The fourth proportional to 86,404.32, 129,602.16 and 33,823.44 is: 50,733.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,404.32 : 129,602.16 = 33,823.44 : x
  2. Step 2: Convert to fraction form
    86,404.32/129,602.16 = 33,823.44/x
  3. Step 3: Cross multiply
    86,404.32x = 129,602.16 × 33,823.44
  4. Step 4: Simplify right side
    86,404.32x = 4,383,590,882.63
  5. Step 5: Solve for x
    x = 4,383,590,882.63/86,404.32
  6. Step 6: Final answer
    x = 50,733.47

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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.