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Finding the Fourth Proportional to 85,683.52, 128,504.58 and 33,059.44

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Solution

The fourth proportional to 85,683.52, 128,504.58 and 33,059.44 is: 49,581.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,683.52 : 128,504.58 = 33,059.44 : x
  2. Step 2: Convert to fraction form
    85,683.52/128,504.58 = 33,059.44/x
  3. Step 3: Cross multiply
    85,683.52x = 128,504.58 × 33,059.44
  4. Step 4: Simplify right side
    85,683.52x = 4,248,289,452.24
  5. Step 5: Solve for x
    x = 4,248,289,452.24/85,683.52
  6. Step 6: Final answer
    x = 49,581.17

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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.