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Finding the Fourth Proportional to 58,362.40, 87,557.46 and 18,919.54

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Solution

The fourth proportional to 58,362.40, 87,557.46 and 18,919.54 is: 28,383.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,362.40 : 87,557.46 = 18,919.54 : x
  2. Step 2: Convert to fraction form
    58,362.40/87,557.46 = 18,919.54/x
  3. Step 3: Cross multiply
    58,362.40x = 87,557.46 × 18,919.54
  4. Step 4: Simplify right side
    58,362.40x = 1,656,546,866.77
  5. Step 5: Solve for x
    x = 1,656,546,866.77/58,362.40
  6. Step 6: Final answer
    x = 28,383.80

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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.