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Finding the Fourth Proportional to 56,901.80, 85,187.32 and 33,136.80

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Solution

The fourth proportional to 56,901.80, 85,187.32 and 33,136.80 is: 49,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,901.80 : 85,187.32 = 33,136.80 : x
  2. Step 2: Convert to fraction form
    56,901.80/85,187.32 = 33,136.80/x
  3. Step 3: Cross multiply
    56,901.80x = 85,187.32 × 33,136.80
  4. Step 4: Simplify right side
    56,901.80x = 2,822,835,185.38
  5. Step 5: Solve for x
    x = 2,822,835,185.38/56,901.80
  6. Step 6: Final answer
    x = 49,608.89

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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.