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Finding the Fourth Proportional to 58,657.70, 87,986.55 and 56,584.10

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Solution

The fourth proportional to 58,657.70, 87,986.55 and 56,584.10 is: 84,876.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,657.70 : 87,986.55 = 56,584.10 : x
  2. Step 2: Convert to fraction form
    58,657.70/87,986.55 = 56,584.10/x
  3. Step 3: Cross multiply
    58,657.70x = 87,986.55 × 56,584.10
  4. Step 4: Simplify right side
    58,657.70x = 4,978,639,743.86
  5. Step 5: Solve for x
    x = 4,978,639,743.86/58,657.70
  6. Step 6: Final answer
    x = 84,876.15

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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.