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Finding the Fourth Proportional to 70,893.09, 97,832.21 and 38,629.47

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Solution

The fourth proportional to 70,893.09, 97,832.21 and 38,629.47 is: 53,308.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,893.09 : 97,832.21 = 38,629.47 : x
  2. Step 2: Convert to fraction form
    70,893.09/97,832.21 = 38,629.47/x
  3. Step 3: Cross multiply
    70,893.09x = 97,832.21 × 38,629.47
  4. Step 4: Simplify right side
    70,893.09x = 3,779,206,594.95
  5. Step 5: Solve for x
    x = 3,779,206,594.95/70,893.09
  6. Step 6: Final answer
    x = 53,308.53

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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.