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Finding the Fourth Proportional to 35,491.74, 48,978.36 and 19,575.84

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Solution

The fourth proportional to 35,491.74, 48,978.36 and 19,575.84 is: 27,014.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,491.74 : 48,978.36 = 19,575.84 : x
  2. Step 2: Convert to fraction form
    35,491.74/48,978.36 = 19,575.84/x
  3. Step 3: Cross multiply
    35,491.74x = 48,978.36 × 19,575.84
  4. Step 4: Simplify right side
    35,491.74x = 958,792,538.82
  5. Step 5: Solve for x
    x = 958,792,538.82/35,491.74
  6. Step 6: Final answer
    x = 27,014.53

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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.