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Finding the Fourth Proportional to 65,392.98, 90,242.37 and 35,584.98

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Solution

The fourth proportional to 65,392.98, 90,242.37 and 35,584.98 is: 49,107.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,392.98 : 90,242.37 = 35,584.98 : x
  2. Step 2: Convert to fraction form
    65,392.98/90,242.37 = 35,584.98/x
  3. Step 3: Cross multiply
    65,392.98x = 90,242.37 × 35,584.98
  4. Step 4: Simplify right side
    65,392.98x = 3,211,272,931.60
  5. Step 5: Solve for x
    x = 3,211,272,931.60/65,392.98
  6. Step 6: Final answer
    x = 49,107.30

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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.