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Finding the Fourth Proportional to 29,925.92, 44,879 and 9,930.80

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Solution

The fourth proportional to 29,925.92, 44,879 and 9,930.80 is: 14,892.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,925.92 : 44,879 = 9,930.80 : x
  2. Step 2: Convert to fraction form
    29,925.92/44,879 = 9,930.80/x
  3. Step 3: Cross multiply
    29,925.92x = 44,879 × 9,930.80
  4. Step 4: Simplify right side
    29,925.92x = 445,684,373.20
  5. Step 5: Solve for x
    x = 445,684,373.20/29,925.92
  6. Step 6: Final answer
    x = 14,892.92

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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.