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Finding the Fourth Proportional to 65,282.63, 90,090.14 and 36,990.23

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Solution

The fourth proportional to 65,282.63, 90,090.14 and 36,990.23 is: 51,046.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,282.63 : 90,090.14 = 36,990.23 : x
  2. Step 2: Convert to fraction form
    65,282.63/90,090.14 = 36,990.23/x
  3. Step 3: Cross multiply
    65,282.63x = 90,090.14 × 36,990.23
  4. Step 4: Simplify right side
    65,282.63x = 3,332,454,363.93
  5. Step 5: Solve for x
    x = 3,332,454,363.93/65,282.63
  6. Step 6: Final answer
    x = 51,046.57

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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.