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Finding the Fourth Proportional to 60,750.48, 91,126.34 and 21,308.56

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Solution

The fourth proportional to 60,750.48, 91,126.34 and 21,308.56 is: 31,963.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,750.48 : 91,126.34 = 21,308.56 : x
  2. Step 2: Convert to fraction form
    60,750.48/91,126.34 = 21,308.56/x
  3. Step 3: Cross multiply
    60,750.48x = 91,126.34 × 21,308.56
  4. Step 4: Simplify right side
    60,750.48x = 1,941,771,083.47
  5. Step 5: Solve for x
    x = 1,941,771,083.47/60,750.48
  6. Step 6: Final answer
    x = 31,963.06

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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.