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Finding the Fourth Proportional to 70,936.60, 97,893.20 and 39,106.64

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Solution

The fourth proportional to 70,936.60, 97,893.20 and 39,106.64 is: 53,967.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,936.60 : 97,893.20 = 39,106.64 : x
  2. Step 2: Convert to fraction form
    70,936.60/97,893.20 = 39,106.64/x
  3. Step 3: Cross multiply
    70,936.60x = 97,893.20 × 39,106.64
  4. Step 4: Simplify right side
    70,936.60x = 3,828,274,130.85
  5. Step 5: Solve for x
    x = 3,828,274,130.85/70,936.60
  6. Step 6: Final answer
    x = 53,967.54

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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.