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Finding the Fourth Proportional to 66,173.32, 91,313.22 and 37,881.64

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Solution

The fourth proportional to 66,173.32, 91,313.22 and 37,881.64 is: 52,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,173.32 : 91,313.22 = 37,881.64 : x
  2. Step 2: Convert to fraction form
    66,173.32/91,313.22 = 37,881.64/x
  3. Step 3: Cross multiply
    66,173.32x = 91,313.22 × 37,881.64
  4. Step 4: Simplify right side
    66,173.32x = 3,459,094,527.28
  5. Step 5: Solve for x
    x = 3,459,094,527.28/66,173.32
  6. Step 6: Final answer
    x = 52,273.25

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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.