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Finding the Fourth Proportional to 57,467.48, 86,172 and 26,276

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Solution

The fourth proportional to 57,467.48, 86,172 and 26,276 is: 39,400.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,467.48 : 86,172 = 26,276 : x
  2. Step 2: Convert to fraction form
    57,467.48/86,172 = 26,276/x
  3. Step 3: Cross multiply
    57,467.48x = 86,172 × 26,276
  4. Step 4: Simplify right side
    57,467.48x = 2,264,255,472
  5. Step 5: Solve for x
    x = 2,264,255,472/57,467.48
  6. Step 6: Final answer
    x = 39,400.64

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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.