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Finding the Fourth Proportional to 65,253.36, 90,055.90 and 36,572.88

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Solution

The fourth proportional to 65,253.36, 90,055.90 and 36,572.88 is: 50,474.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,253.36 : 90,055.90 = 36,572.88 : x
  2. Step 2: Convert to fraction form
    65,253.36/90,055.90 = 36,572.88/x
  3. Step 3: Cross multiply
    65,253.36x = 90,055.90 × 36,572.88
  4. Step 4: Simplify right side
    65,253.36x = 3,293,603,623.99
  5. Step 5: Solve for x
    x = 3,293,603,623.99/65,253.36
  6. Step 6: Final answer
    x = 50,474.08

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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.