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Finding the Fourth Proportional to 66,119.59, 91,244.70 and 35,904.64

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Solution

The fourth proportional to 66,119.59, 91,244.70 and 35,904.64 is: 49,548.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,119.59 : 91,244.70 = 35,904.64 : x
  2. Step 2: Convert to fraction form
    66,119.59/91,244.70 = 35,904.64/x
  3. Step 3: Cross multiply
    66,119.59x = 91,244.70 × 35,904.64
  4. Step 4: Simplify right side
    66,119.59x = 3,276,108,105.41
  5. Step 5: Solve for x
    x = 3,276,108,105.41/66,119.59
  6. Step 6: Final answer
    x = 49,548.22

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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.