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Finding the Fourth Proportional to 58,463.64, 87,704.64 and 19,011.54

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Solution

The fourth proportional to 58,463.64, 87,704.64 and 19,011.54 is: 28,520.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,463.64 : 87,704.64 = 19,011.54 : x
  2. Step 2: Convert to fraction form
    58,463.64/87,704.64 = 19,011.54/x
  3. Step 3: Cross multiply
    58,463.64x = 87,704.64 × 19,011.54
  4. Step 4: Simplify right side
    58,463.64x = 1,667,400,271.55
  5. Step 5: Solve for x
    x = 1,667,400,271.55/58,463.64
  6. Step 6: Final answer
    x = 28,520.30

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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.