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Finding the Fourth Proportional to 69,479.60, 95,879.08 and 40,795.44

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Solution

The fourth proportional to 69,479.60, 95,879.08 and 40,795.44 is: 56,296.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,479.60 : 95,879.08 = 40,795.44 : x
  2. Step 2: Convert to fraction form
    69,479.60/95,879.08 = 40,795.44/x
  3. Step 3: Cross multiply
    69,479.60x = 95,879.08 × 40,795.44
  4. Step 4: Simplify right side
    69,479.60x = 3,911,429,255.40
  5. Step 5: Solve for x
    x = 3,911,429,255.40/69,479.60
  6. Step 6: Final answer
    x = 56,296.08

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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.