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Finding the Fourth Proportional to 59,899.66, 82,651.16 and 38,408.20

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Solution

The fourth proportional to 59,899.66, 82,651.16 and 38,408.20 is: 52,996.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,899.66 : 82,651.16 = 38,408.20 : x
  2. Step 2: Convert to fraction form
    59,899.66/82,651.16 = 38,408.20/x
  3. Step 3: Cross multiply
    59,899.66x = 82,651.16 × 38,408.20
  4. Step 4: Simplify right side
    59,899.66x = 3,174,482,283.51
  5. Step 5: Solve for x
    x = 3,174,482,283.51/59,899.66
  6. Step 6: Final answer
    x = 52,996.67

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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.