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Finding the Fourth Proportional to 70,959.57, 97,924.94 and 39,129.61

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Solution

The fourth proportional to 70,959.57, 97,924.94 and 39,129.61 is: 53,999.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,959.57 : 97,924.94 = 39,129.61 : x
  2. Step 2: Convert to fraction form
    70,959.57/97,924.94 = 39,129.61/x
  3. Step 3: Cross multiply
    70,959.57x = 97,924.94 × 39,129.61
  4. Step 4: Simplify right side
    70,959.57x = 3,831,764,270.92
  5. Step 5: Solve for x
    x = 3,831,764,270.92/70,959.57
  6. Step 6: Final answer
    x = 53,999.26

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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.