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Finding the Fourth Proportional to 60,582.70, 90,878.10 and 20,601.10

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Solution

The fourth proportional to 60,582.70, 90,878.10 and 20,601.10 is: 30,903.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,582.70 : 90,878.10 = 20,601.10 : x
  2. Step 2: Convert to fraction form
    60,582.70/90,878.10 = 20,601.10/x
  3. Step 3: Cross multiply
    60,582.70x = 90,878.10 × 20,601.10
  4. Step 4: Simplify right side
    60,582.70x = 1,872,188,825.91
  5. Step 5: Solve for x
    x = 1,872,188,825.91/60,582.70
  6. Step 6: Final answer
    x = 30,903.03

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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.