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Finding the Fourth Proportional to 48,672.61, 72,980.97 and 19,055.77

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Solution

The fourth proportional to 48,672.61, 72,980.97 and 19,055.77 is: 28,572.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,672.61 : 72,980.97 = 19,055.77 : x
  2. Step 2: Convert to fraction form
    48,672.61/72,980.97 = 19,055.77/x
  3. Step 3: Cross multiply
    48,672.61x = 72,980.97 × 19,055.77
  4. Step 4: Simplify right side
    48,672.61x = 1,390,708,578.70
  5. Step 5: Solve for x
    x = 1,390,708,578.70/48,672.61
  6. Step 6: Final answer
    x = 28,572.71

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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.