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Finding the Fourth Proportional to 47,808.72, 71,700.90 and 33,899.40

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Solution

The fourth proportional to 47,808.72, 71,700.90 and 33,899.40 is: 50,840.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,808.72 : 71,700.90 = 33,899.40 : x
  2. Step 2: Convert to fraction form
    47,808.72/71,700.90 = 33,899.40/x
  3. Step 3: Cross multiply
    47,808.72x = 71,700.90 × 33,899.40
  4. Step 4: Simplify right side
    47,808.72x = 2,430,617,489.46
  5. Step 5: Solve for x
    x = 2,430,617,489.46/47,808.72
  6. Step 6: Final answer
    x = 50,840.46

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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.