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Finding the Fourth Proportional to 86,066.38, 118,769.03 and 47,825.81

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Solution

The fourth proportional to 86,066.38, 118,769.03 and 47,825.81 is: 65,998.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,066.38 : 118,769.03 = 47,825.81 : x
  2. Step 2: Convert to fraction form
    86,066.38/118,769.03 = 47,825.81/x
  3. Step 3: Cross multiply
    86,066.38x = 118,769.03 × 47,825.81
  4. Step 4: Simplify right side
    86,066.38x = 5,680,224,468.82
  5. Step 5: Solve for x
    x = 5,680,224,468.82/86,066.38
  6. Step 6: Final answer
    x = 65,998.18

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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.