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Finding the Fourth Proportional to 57,311.82, 79,097.31 and 36,090.63

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Solution

The fourth proportional to 57,311.82, 79,097.31 and 36,090.63 is: 49,809.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,311.82 : 79,097.31 = 36,090.63 : x
  2. Step 2: Convert to fraction form
    57,311.82/79,097.31 = 36,090.63/x
  3. Step 3: Cross multiply
    57,311.82x = 79,097.31 × 36,090.63
  4. Step 4: Simplify right side
    57,311.82x = 2,854,671,749.21
  5. Step 5: Solve for x
    x = 2,854,671,749.21/57,311.82
  6. Step 6: Final answer
    x = 49,809.48

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1.5x scale

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.