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Finding the Fourth Proportional to 65,817.46, 90,829.65 and 37,525.78

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Solution

The fourth proportional to 65,817.46, 90,829.65 and 37,525.78 is: 51,786.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,817.46 : 90,829.65 = 37,525.78 : x
  2. Step 2: Convert to fraction form
    65,817.46/90,829.65 = 37,525.78/x
  3. Step 3: Cross multiply
    65,817.46x = 90,829.65 × 37,525.78
  4. Step 4: Simplify right side
    65,817.46x = 3,408,453,463.38
  5. Step 5: Solve for x
    x = 3,408,453,463.38/65,817.46
  6. Step 6: Final answer
    x = 51,786.46

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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.