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Finding the Fourth Proportional to 69,071.94, 95,327.42 and 38,858.40

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Solution

The fourth proportional to 69,071.94, 95,327.42 and 38,858.40 is: 53,629.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,071.94 : 95,327.42 = 38,858.40 : x
  2. Step 2: Convert to fraction form
    69,071.94/95,327.42 = 38,858.40/x
  3. Step 3: Cross multiply
    69,071.94x = 95,327.42 × 38,858.40
  4. Step 4: Simplify right side
    69,071.94x = 3,704,270,823.04
  5. Step 5: Solve for x
    x = 3,704,270,823.04/69,071.94
  6. Step 6: Final answer
    x = 53,629.17

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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.