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Finding the Fourth Proportional to 52,629.46, 78,978.57 and 19,349.80

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Solution

The fourth proportional to 52,629.46, 78,978.57 and 19,349.80 is: 29,037.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,629.46 : 78,978.57 = 19,349.80 : x
  2. Step 2: Convert to fraction form
    52,629.46/78,978.57 = 19,349.80/x
  3. Step 3: Cross multiply
    52,629.46x = 78,978.57 × 19,349.80
  4. Step 4: Simplify right side
    52,629.46x = 1,528,219,533.79
  5. Step 5: Solve for x
    x = 1,528,219,533.79/52,629.46
  6. Step 6: Final answer
    x = 29,037.34

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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.