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Finding the Fourth Proportional to 69,705.65, 96,201.48 and 39,081.65

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Solution

The fourth proportional to 69,705.65, 96,201.48 and 39,081.65 is: 53,936.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,705.65 : 96,201.48 = 39,081.65 : x
  2. Step 2: Convert to fraction form
    69,705.65/96,201.48 = 39,081.65/x
  3. Step 3: Cross multiply
    69,705.65x = 96,201.48 × 39,081.65
  4. Step 4: Simplify right side
    69,705.65x = 3,759,712,570.84
  5. Step 5: Solve for x
    x = 3,759,712,570.84/69,705.65
  6. Step 6: Final answer
    x = 53,936.98

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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.