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Finding the Fourth Proportional to 66,457.66, 91,713.80 and 36,244.64

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Solution

The fourth proportional to 66,457.66, 91,713.80 and 36,244.64 is: 50,018.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,457.66 : 91,713.80 = 36,244.64 : x
  2. Step 2: Convert to fraction form
    66,457.66/91,713.80 = 36,244.64/x
  3. Step 3: Cross multiply
    66,457.66x = 91,713.80 × 36,244.64
  4. Step 4: Simplify right side
    66,457.66x = 3,324,133,664.03
  5. Step 5: Solve for x
    x = 3,324,133,664.03/66,457.66
  6. Step 6: Final answer
    x = 50,018.82

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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.