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Finding the Fourth Proportional to 66,219.33, 91,380.68 and 37,541.64

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Solution

The fourth proportional to 66,219.33, 91,380.68 and 37,541.64 is: 51,806.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,219.33 : 91,380.68 = 37,541.64 : x
  2. Step 2: Convert to fraction form
    66,219.33/91,380.68 = 37,541.64/x
  3. Step 3: Cross multiply
    66,219.33x = 91,380.68 × 37,541.64
  4. Step 4: Simplify right side
    66,219.33x = 3,430,580,403.81
  5. Step 5: Solve for x
    x = 3,430,580,403.81/66,219.33
  6. Step 6: Final answer
    x = 51,806.33

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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.