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Finding the Fourth Proportional to 60,745.48, 91,118.82 and 21,303.54

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Solution

The fourth proportional to 60,745.48, 91,118.82 and 21,303.54 is: 31,955.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,745.48 : 91,118.82 = 21,303.54 : x
  2. Step 2: Convert to fraction form
    60,745.48/91,118.82 = 21,303.54/x
  3. Step 3: Cross multiply
    60,745.48x = 91,118.82 × 21,303.54
  4. Step 4: Simplify right side
    60,745.48x = 1,941,153,426.62
  5. Step 5: Solve for x
    x = 1,941,153,426.62/60,745.48
  6. Step 6: Final answer
    x = 31,955.52

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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.