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Finding the Fourth Proportional to 65,081.63, 89,812.65 and 35,273.63

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Solution

The fourth proportional to 65,081.63, 89,812.65 and 35,273.63 is: 48,677.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,081.63 : 89,812.65 = 35,273.63 : x
  2. Step 2: Convert to fraction form
    65,081.63/89,812.65 = 35,273.63/x
  3. Step 3: Cross multiply
    65,081.63x = 89,812.65 × 35,273.63
  4. Step 4: Simplify right side
    65,081.63x = 3,168,017,736.36
  5. Step 5: Solve for x
    x = 3,168,017,736.36/65,081.63
  6. Step 6: Final answer
    x = 48,677.61

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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.