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Finding the Fourth Proportional to 29,913.92, 44,802.72 and 14,342.72

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Solution

The fourth proportional to 29,913.92, 44,802.72 and 14,342.72 is: 21,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,913.92 : 44,802.72 = 14,342.72 : x
  2. Step 2: Convert to fraction form
    29,913.92/44,802.72 = 14,342.72/x
  3. Step 3: Cross multiply
    29,913.92x = 44,802.72 × 14,342.72
  4. Step 4: Simplify right side
    29,913.92x = 642,592,868.20
  5. Step 5: Solve for x
    x = 642,592,868.20/29,913.92
  6. Step 6: Final answer
    x = 21,481.40

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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.