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Finding the Fourth Proportional to 60,495.92, 90,665.03 and 30,888.80

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Solution

The fourth proportional to 60,495.92, 90,665.03 and 30,888.80 is: 46,292.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,495.92 : 90,665.03 = 30,888.80 : x
  2. Step 2: Convert to fraction form
    60,495.92/90,665.03 = 30,888.80/x
  3. Step 3: Cross multiply
    60,495.92x = 90,665.03 × 30,888.80
  4. Step 4: Simplify right side
    60,495.92x = 2,800,533,978.66
  5. Step 5: Solve for x
    x = 2,800,533,978.66/60,495.92
  6. Step 6: Final answer
    x = 46,292.94

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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.