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Finding the Fourth Proportional to 57,085.84, 85,628.12 and 22,000.88

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Solution

The fourth proportional to 57,085.84, 85,628.12 and 22,000.88 is: 33,001.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,085.84 : 85,628.12 = 22,000.88 : x
  2. Step 2: Convert to fraction form
    57,085.84/85,628.12 = 22,000.88/x
  3. Step 3: Cross multiply
    57,085.84x = 85,628.12 × 22,000.88
  4. Step 4: Simplify right side
    57,085.84x = 1,883,893,992.75
  5. Step 5: Solve for x
    x = 1,883,893,992.75/57,085.84
  6. Step 6: Final answer
    x = 33,001.07

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Similar ratio
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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.