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Finding the Fourth Proportional to 69,221.94, 95,563 and 55,460.24

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Solution

The fourth proportional to 69,221.94, 95,563 and 55,460.24 is: 76,564.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,221.94 : 95,563 = 55,460.24 : x
  2. Step 2: Convert to fraction form
    69,221.94/95,563 = 55,460.24/x
  3. Step 3: Cross multiply
    69,221.94x = 95,563 × 55,460.24
  4. Step 4: Simplify right side
    69,221.94x = 5,299,946,915.12
  5. Step 5: Solve for x
    x = 5,299,946,915.12/69,221.94
  6. Step 6: Final answer
    x = 76,564.55

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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.