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Finding the Fourth Proportional to 40,125.78, 60,152.88 and 19,052.82

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Solution

The fourth proportional to 40,125.78, 60,152.88 and 19,052.82 is: 28,562.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,125.78 : 60,152.88 = 19,052.82 : x
  2. Step 2: Convert to fraction form
    40,125.78/60,152.88 = 19,052.82/x
  3. Step 3: Cross multiply
    40,125.78x = 60,152.88 × 19,052.82
  4. Step 4: Simplify right side
    40,125.78x = 1,146,081,995.12
  5. Step 5: Solve for x
    x = 1,146,081,995.12/40,125.78
  6. Step 6: Final answer
    x = 28,562.24

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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.