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Finding the Fourth Proportional to 49,442.40, 68,235.40 and 28,224.86

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Solution

The fourth proportional to 49,442.40, 68,235.40 and 28,224.86 is: 38,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,442.40 : 68,235.40 = 28,224.86 : x
  2. Step 2: Convert to fraction form
    49,442.40/68,235.40 = 28,224.86/x
  3. Step 3: Cross multiply
    49,442.40x = 68,235.40 × 28,224.86
  4. Step 4: Simplify right side
    49,442.40x = 1,925,934,612.04
  5. Step 5: Solve for x
    x = 1,925,934,612.04/49,442.40
  6. Step 6: Final answer
    x = 38,953.10

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Why These Related Problems?

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