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Finding the Fourth Proportional to 66,354.21, 91,569.96 and 37,673.13

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Solution

The fourth proportional to 66,354.21, 91,569.96 and 37,673.13 is: 51,989.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,354.21 : 91,569.96 = 37,673.13 : x
  2. Step 2: Convert to fraction form
    66,354.21/91,569.96 = 37,673.13/x
  3. Step 3: Cross multiply
    66,354.21x = 91,569.96 × 37,673.13
  4. Step 4: Simplify right side
    66,354.21x = 3,449,727,007.17
  5. Step 5: Solve for x
    x = 3,449,727,007.17/66,354.21
  6. Step 6: Final answer
    x = 51,989.57

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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.