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Finding the Fourth Proportional to 27,893.84, 41,742.95 and 20,005.25

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Solution

The fourth proportional to 27,893.84, 41,742.95 and 20,005.25 is: 29,937.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,893.84 : 41,742.95 = 20,005.25 : x
  2. Step 2: Convert to fraction form
    27,893.84/41,742.95 = 20,005.25/x
  3. Step 3: Cross multiply
    27,893.84x = 41,742.95 × 20,005.25
  4. Step 4: Simplify right side
    27,893.84x = 835,077,841.75
  5. Step 5: Solve for x
    x = 835,077,841.75/27,893.84
  6. Step 6: Final answer
    x = 29,937.72

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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.