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Finding the Fourth Proportional to 45,159, 62,319.42 and 25,287

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Solution

The fourth proportional to 45,159, 62,319.42 and 25,287 is: 34,896.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,159 : 62,319.42 = 25,287 : x
  2. Step 2: Convert to fraction form
    45,159/62,319.42 = 25,287/x
  3. Step 3: Cross multiply
    45,159x = 62,319.42 × 25,287
  4. Step 4: Simplify right side
    45,159x = 1,575,871,173.54
  5. Step 5: Solve for x
    x = 1,575,871,173.54/45,159
  6. Step 6: Final answer
    x = 34,896.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.