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Finding the Fourth Proportional to 60,474.40, 90,675.76 and 18,341.60

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Solution

The fourth proportional to 60,474.40, 90,675.76 and 18,341.60 is: 27,501.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,474.40 : 90,675.76 = 18,341.60 : x
  2. Step 2: Convert to fraction form
    60,474.40/90,675.76 = 18,341.60/x
  3. Step 3: Cross multiply
    60,474.40x = 90,675.76 × 18,341.60
  4. Step 4: Simplify right side
    60,474.40x = 1,663,138,519.62
  5. Step 5: Solve for x
    x = 1,663,138,519.62/60,474.40
  6. Step 6: Final answer
    x = 27,501.53

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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.