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Finding the Fourth Proportional to 60,276.06, 90,420.17 and 15,905.88

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Solution

The fourth proportional to 60,276.06, 90,420.17 and 15,905.88 is: 23,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,276.06 : 90,420.17 = 15,905.88 : x
  2. Step 2: Convert to fraction form
    60,276.06/90,420.17 = 15,905.88/x
  3. Step 3: Cross multiply
    60,276.06x = 90,420.17 × 15,905.88
  4. Step 4: Simplify right side
    60,276.06x = 1,438,212,294.07
  5. Step 5: Solve for x
    x = 1,438,212,294.07/60,276.06
  6. Step 6: Final answer
    x = 23,860.42

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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.