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Finding the Fourth Proportional to 69,392.77, 95,756.69 and 39,181.07

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Solution

The fourth proportional to 69,392.77, 95,756.69 and 39,181.07 is: 54,066.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,392.77 : 95,756.69 = 39,181.07 : x
  2. Step 2: Convert to fraction form
    69,392.77/95,756.69 = 39,181.07/x
  3. Step 3: Cross multiply
    69,392.77x = 95,756.69 × 39,181.07
  4. Step 4: Simplify right side
    69,392.77x = 3,751,849,911.20
  5. Step 5: Solve for x
    x = 3,751,849,911.20/69,392.77
  6. Step 6: Final answer
    x = 54,066.87

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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.