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Finding the Fourth Proportional to 34,830.88, 48,066.96 and 18,915.48

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Solution

The fourth proportional to 34,830.88, 48,066.96 and 18,915.48 is: 26,103.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,830.88 : 48,066.96 = 18,915.48 : x
  2. Step 2: Convert to fraction form
    34,830.88/48,066.96 = 18,915.48/x
  3. Step 3: Cross multiply
    34,830.88x = 48,066.96 × 18,915.48
  4. Step 4: Simplify right side
    34,830.88x = 909,209,620.54
  5. Step 5: Solve for x
    x = 909,209,620.54/34,830.88
  6. Step 6: Final answer
    x = 26,103.55

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