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Finding the Fourth Proportional to 58,295.70, 87,438.69 and 34,905.06

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Solution

The fourth proportional to 58,295.70, 87,438.69 and 34,905.06 is: 52,354.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,295.70 : 87,438.69 = 34,905.06 : x
  2. Step 2: Convert to fraction form
    58,295.70/87,438.69 = 34,905.06/x
  3. Step 3: Cross multiply
    58,295.70x = 87,438.69 × 34,905.06
  4. Step 4: Simplify right side
    58,295.70x = 3,052,052,720.77
  5. Step 5: Solve for x
    x = 3,052,052,720.77/58,295.70
  6. Step 6: Final answer
    x = 52,354.68

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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.