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Finding the Fourth Proportional to 36,607.50, 54,911.34 and 8,905.50

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Solution

The fourth proportional to 36,607.50, 54,911.34 and 8,905.50 is: 13,358.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,607.50 : 54,911.34 = 8,905.50 : x
  2. Step 2: Convert to fraction form
    36,607.50/54,911.34 = 8,905.50/x
  3. Step 3: Cross multiply
    36,607.50x = 54,911.34 × 8,905.50
  4. Step 4: Simplify right side
    36,607.50x = 489,012,938.37
  5. Step 5: Solve for x
    x = 489,012,938.37/36,607.50
  6. Step 6: Final answer
    x = 13,358.27

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1.5x scale

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.