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Finding the Fourth Proportional to 69,114.80, 103,672.20 and 22,372.40

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Solution

The fourth proportional to 69,114.80, 103,672.20 and 22,372.40 is: 33,558.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,114.80 : 103,672.20 = 22,372.40 : x
  2. Step 2: Convert to fraction form
    69,114.80/103,672.20 = 22,372.40/x
  3. Step 3: Cross multiply
    69,114.80x = 103,672.20 × 22,372.40
  4. Step 4: Simplify right side
    69,114.80x = 2,319,395,927.28
  5. Step 5: Solve for x
    x = 2,319,395,927.28/69,114.80
  6. Step 6: Final answer
    x = 33,558.60

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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.