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Finding the Fourth Proportional to 35,056.50, 48,379.05 and 20,152.50

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Solution

The fourth proportional to 35,056.50, 48,379.05 and 20,152.50 is: 27,811.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,056.50 : 48,379.05 = 20,152.50 : x
  2. Step 2: Convert to fraction form
    35,056.50/48,379.05 = 20,152.50/x
  3. Step 3: Cross multiply
    35,056.50x = 48,379.05 × 20,152.50
  4. Step 4: Simplify right side
    35,056.50x = 974,958,805.13
  5. Step 5: Solve for x
    x = 974,958,805.13/35,056.50
  6. Step 6: Final answer
    x = 27,811.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.