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Finding the Fourth Proportional to 57,872.78, 86,817.48 and 17,894.88

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Solution

The fourth proportional to 57,872.78, 86,817.48 and 17,894.88 is: 26,844.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,872.78 : 86,817.48 = 17,894.88 : x
  2. Step 2: Convert to fraction form
    57,872.78/86,817.48 = 17,894.88/x
  3. Step 3: Cross multiply
    57,872.78x = 86,817.48 × 17,894.88
  4. Step 4: Simplify right side
    57,872.78x = 1,553,588,386.50
  5. Step 5: Solve for x
    x = 1,553,588,386.50/57,872.78
  6. Step 6: Final answer
    x = 26,844.89

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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.