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Finding the Fourth Proportional to 86,293.65, 129,387.62 and 33,641.63

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Solution

The fourth proportional to 86,293.65, 129,387.62 and 33,641.63 is: 50,441.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,293.65 : 129,387.62 = 33,641.63 : x
  2. Step 2: Convert to fraction form
    86,293.65/129,387.62 = 33,641.63/x
  3. Step 3: Cross multiply
    86,293.65x = 129,387.62 × 33,641.63
  4. Step 4: Simplify right side
    86,293.65x = 4,352,810,438.62
  5. Step 5: Solve for x
    x = 4,352,810,438.62/86,293.65
  6. Step 6: Final answer
    x = 50,441.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.