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Finding the Fourth Proportional to 70,906.53, 97,850.25 and 39,076.77

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Solution

The fourth proportional to 70,906.53, 97,850.25 and 39,076.77 is: 53,925.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,906.53 : 97,850.25 = 39,076.77 : x
  2. Step 2: Convert to fraction form
    70,906.53/97,850.25 = 39,076.77/x
  3. Step 3: Cross multiply
    70,906.53x = 97,850.25 × 39,076.77
  4. Step 4: Simplify right side
    70,906.53x = 3,823,671,713.69
  5. Step 5: Solve for x
    x = 3,823,671,713.69/70,906.53
  6. Step 6: Final answer
    x = 53,925.52

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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.