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Finding the Fourth Proportional to 65,605.94, 98,401.09 and 38,604.42

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Solution

The fourth proportional to 65,605.94, 98,401.09 and 38,604.42 is: 57,902.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,605.94 : 98,401.09 = 38,604.42 : x
  2. Step 2: Convert to fraction form
    65,605.94/98,401.09 = 38,604.42/x
  3. Step 3: Cross multiply
    65,605.94x = 98,401.09 × 38,604.42
  4. Step 4: Simplify right side
    65,605.94x = 3,798,717,006.82
  5. Step 5: Solve for x
    x = 3,798,717,006.82/65,605.94
  6. Step 6: Final answer
    x = 57,902.03

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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.