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Finding the Fourth Proportional to 65,216.08, 90,000.30 and 36,921.16

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Solution

The fourth proportional to 65,216.08, 90,000.30 and 36,921.16 is: 50,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,216.08 : 90,000.30 = 36,921.16 : x
  2. Step 2: Convert to fraction form
    65,216.08/90,000.30 = 36,921.16/x
  3. Step 3: Cross multiply
    65,216.08x = 90,000.30 × 36,921.16
  4. Step 4: Simplify right side
    65,216.08x = 3,322,915,476.35
  5. Step 5: Solve for x
    x = 3,322,915,476.35/65,216.08
  6. Step 6: Final answer
    x = 50,952.40

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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.