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Finding the Fourth Proportional to 53,358.44, 80,037.63 and 13,915.44

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Solution

The fourth proportional to 53,358.44, 80,037.63 and 13,915.44 is: 20,873.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,358.44 : 80,037.63 = 13,915.44 : x
  2. Step 2: Convert to fraction form
    53,358.44/80,037.63 = 13,915.44/x
  3. Step 3: Cross multiply
    53,358.44x = 80,037.63 × 13,915.44
  4. Step 4: Simplify right side
    53,358.44x = 1,113,758,838.01
  5. Step 5: Solve for x
    x = 1,113,758,838.01/53,358.44
  6. Step 6: Final answer
    x = 20,873.15

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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.