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Finding the Fourth Proportional to 48,672.09, 72,978.57 and 19,054.44

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Solution

The fourth proportional to 48,672.09, 72,978.57 and 19,054.44 is: 28,570.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,672.09 : 72,978.57 = 19,054.44 : x
  2. Step 2: Convert to fraction form
    48,672.09/72,978.57 = 19,054.44/x
  3. Step 3: Cross multiply
    48,672.09x = 72,978.57 × 19,054.44
  4. Step 4: Simplify right side
    48,672.09x = 1,390,565,783.35
  5. Step 5: Solve for x
    x = 1,390,565,783.35/48,672.09
  6. Step 6: Final answer
    x = 28,570.09

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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.