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Finding the Fourth Proportional to 58,507.20, 87,768 and 19,053.72

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Solution

The fourth proportional to 58,507.20, 87,768 and 19,053.72 is: 28,582.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,507.20 : 87,768 = 19,053.72 : x
  2. Step 2: Convert to fraction form
    58,507.20/87,768 = 19,053.72/x
  3. Step 3: Cross multiply
    58,507.20x = 87,768 × 19,053.72
  4. Step 4: Simplify right side
    58,507.20x = 1,672,306,896.96
  5. Step 5: Solve for x
    x = 1,672,306,896.96/58,507.20
  6. Step 6: Final answer
    x = 28,582.92

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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.