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Finding the Fourth Proportional to 65,644.13, 90,583.49 and 36,954.63

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Solution

The fourth proportional to 65,644.13, 90,583.49 and 36,954.63 is: 50,994.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,644.13 : 90,583.49 = 36,954.63 : x
  2. Step 2: Convert to fraction form
    65,644.13/90,583.49 = 36,954.63/x
  3. Step 3: Cross multiply
    65,644.13x = 90,583.49 × 36,954.63
  4. Step 4: Simplify right side
    65,644.13x = 3,347,479,172.29
  5. Step 5: Solve for x
    x = 3,347,479,172.29/65,644.13
  6. Step 6: Final answer
    x = 50,994.35

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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.