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Finding the Fourth Proportional to 69,458.88, 95,858.40 and 39,247.68

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Solution

The fourth proportional to 69,458.88, 95,858.40 and 39,247.68 is: 54,164.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,458.88 : 95,858.40 = 39,247.68 : x
  2. Step 2: Convert to fraction form
    69,458.88/95,858.40 = 39,247.68/x
  3. Step 3: Cross multiply
    69,458.88x = 95,858.40 × 39,247.68
  4. Step 4: Simplify right side
    69,458.88x = 3,762,219,808.51
  5. Step 5: Solve for x
    x = 3,762,219,808.51/69,458.88
  6. Step 6: Final answer
    x = 54,164.71

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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.