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Finding the Fourth Proportional to 57,798, 79,767.73 and 32,649.12

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Solution

The fourth proportional to 57,798, 79,767.73 and 32,649.12 is: 45,059.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,798 : 79,767.73 = 32,649.12 : x
  2. Step 2: Convert to fraction form
    57,798/79,767.73 = 32,649.12/x
  3. Step 3: Cross multiply
    57,798x = 79,767.73 × 32,649.12
  4. Step 4: Simplify right side
    57,798x = 2,604,346,188.90
  5. Step 5: Solve for x
    x = 2,604,346,188.90/57,798
  6. Step 6: Final answer
    x = 45,059.45

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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.