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Finding the Fourth Proportional to 65,077.32, 89,811.28 and 36,783.22

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Solution

The fourth proportional to 65,077.32, 89,811.28 and 36,783.22 is: 50,763.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,077.32 : 89,811.28 = 36,783.22 : x
  2. Step 2: Convert to fraction form
    65,077.32/89,811.28 = 36,783.22/x
  3. Step 3: Cross multiply
    65,077.32x = 89,811.28 × 36,783.22
  4. Step 4: Simplify right side
    65,077.32x = 3,303,548,070.72
  5. Step 5: Solve for x
    x = 3,303,548,070.72/65,077.32
  6. Step 6: Final answer
    x = 50,763.43

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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.