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Finding the Fourth Proportional to 65,234.97, 90,019.96 and 36,549.63

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Solution

The fourth proportional to 65,234.97, 90,019.96 and 36,549.63 is: 50,436.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,234.97 : 90,019.96 = 36,549.63 : x
  2. Step 2: Convert to fraction form
    65,234.97/90,019.96 = 36,549.63/x
  3. Step 3: Cross multiply
    65,234.97x = 90,019.96 × 36,549.63
  4. Step 4: Simplify right side
    65,234.97x = 3,290,196,139.24
  5. Step 5: Solve for x
    x = 3,290,196,139.24/65,234.97
  6. Step 6: Final answer
    x = 50,436.08

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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.