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Finding the Fourth Proportional to 85,959.98, 128,866.62 and 32,622.14

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Solution

The fourth proportional to 85,959.98, 128,866.62 and 32,622.14 is: 48,905.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,959.98 : 128,866.62 = 32,622.14 : x
  2. Step 2: Convert to fraction form
    85,959.98/128,866.62 = 32,622.14/x
  3. Step 3: Cross multiply
    85,959.98x = 128,866.62 × 32,622.14
  4. Step 4: Simplify right side
    85,959.98x = 4,203,904,918.97
  5. Step 5: Solve for x
    x = 4,203,904,918.97/85,959.98
  6. Step 6: Final answer
    x = 48,905.37

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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.