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Finding the Fourth Proportional to 70,906.86, 97,851.49 and 38,641.49

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Solution

The fourth proportional to 70,906.86, 97,851.49 and 38,641.49 is: 53,325.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,906.86 : 97,851.49 = 38,641.49 : x
  2. Step 2: Convert to fraction form
    70,906.86/97,851.49 = 38,641.49/x
  3. Step 3: Cross multiply
    70,906.86x = 97,851.49 × 38,641.49
  4. Step 4: Simplify right side
    70,906.86x = 3,781,127,310.94
  5. Step 5: Solve for x
    x = 3,781,127,310.94/70,906.86
  6. Step 6: Final answer
    x = 53,325.27

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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.