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Finding the Fourth Proportional to 69,619.44, 96,112.72 and 53,354.64

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Solution

The fourth proportional to 69,619.44, 96,112.72 and 53,354.64 is: 73,658.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,619.44 : 96,112.72 = 53,354.64 : x
  2. Step 2: Convert to fraction form
    69,619.44/96,112.72 = 53,354.64/x
  3. Step 3: Cross multiply
    69,619.44x = 96,112.72 × 53,354.64
  4. Step 4: Simplify right side
    69,619.44x = 5,128,059,575.02
  5. Step 5: Solve for x
    x = 5,128,059,575.02/69,619.44
  6. Step 6: Final answer
    x = 73,658.44

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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.