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Finding the Fourth Proportional to 85,220.48, 127,830.72 and 32,629.96

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Solution

The fourth proportional to 85,220.48, 127,830.72 and 32,629.96 is: 48,944.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,220.48 : 127,830.72 = 32,629.96 : x
  2. Step 2: Convert to fraction form
    85,220.48/127,830.72 = 32,629.96/x
  3. Step 3: Cross multiply
    85,220.48x = 127,830.72 × 32,629.96
  4. Step 4: Simplify right side
    85,220.48x = 4,171,111,117.22
  5. Step 5: Solve for x
    x = 4,171,111,117.22/85,220.48
  6. Step 6: Final answer
    x = 48,944.94

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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.