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Finding the Fourth Proportional to 48,866.72, 73,298.80 and 11,930.40

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Solution

The fourth proportional to 48,866.72, 73,298.80 and 11,930.40 is: 17,895.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,866.72 : 73,298.80 = 11,930.40 : x
  2. Step 2: Convert to fraction form
    48,866.72/73,298.80 = 11,930.40/x
  3. Step 3: Cross multiply
    48,866.72x = 73,298.80 × 11,930.40
  4. Step 4: Simplify right side
    48,866.72x = 874,484,003.52
  5. Step 5: Solve for x
    x = 874,484,003.52/48,866.72
  6. Step 6: Final answer
    x = 17,895.29

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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.