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Finding the Fourth Proportional to 69,336.40, 104,004.60 and 57,672.40

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Solution

The fourth proportional to 69,336.40, 104,004.60 and 57,672.40 is: 86,508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,336.40 : 104,004.60 = 57,672.40 : x
  2. Step 2: Convert to fraction form
    69,336.40/104,004.60 = 57,672.40/x
  3. Step 3: Cross multiply
    69,336.40x = 104,004.60 × 57,672.40
  4. Step 4: Simplify right side
    69,336.40x = 5,998,194,893.04
  5. Step 5: Solve for x
    x = 5,998,194,893.04/69,336.40
  6. Step 6: Final answer
    x = 86,508.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.