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Finding the Fourth Proportional to 65,825.84, 90,839.53 and 35,611.19

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Solution

The fourth proportional to 65,825.84, 90,839.53 and 35,611.19 is: 49,143.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,825.84 : 90,839.53 = 35,611.19 : x
  2. Step 2: Convert to fraction form
    65,825.84/90,839.53 = 35,611.19/x
  3. Step 3: Cross multiply
    65,825.84x = 90,839.53 × 35,611.19
  4. Step 4: Simplify right side
    65,825.84x = 3,234,903,762.34
  5. Step 5: Solve for x
    x = 3,234,903,762.34/65,825.84
  6. Step 6: Final answer
    x = 49,143.37

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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.