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Finding the Fourth Proportional to 66,081.48, 91,193.80 and 37,401.14

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Solution

The fourth proportional to 66,081.48, 91,193.80 and 37,401.14 is: 51,614.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,081.48 : 91,193.80 = 37,401.14 : x
  2. Step 2: Convert to fraction form
    66,081.48/91,193.80 = 37,401.14/x
  3. Step 3: Cross multiply
    66,081.48x = 91,193.80 × 37,401.14
  4. Step 4: Simplify right side
    66,081.48x = 3,410,752,080.93
  5. Step 5: Solve for x
    x = 3,410,752,080.93/66,081.48
  6. Step 6: Final answer
    x = 51,614.34

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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.