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Finding the Fourth Proportional to 66,354.12, 91,567.76 and 37,673.54

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Solution

The fourth proportional to 66,354.12, 91,567.76 and 37,673.54 is: 51,988.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,354.12 : 91,567.76 = 37,673.54 : x
  2. Step 2: Convert to fraction form
    66,354.12/91,567.76 = 37,673.54/x
  3. Step 3: Cross multiply
    66,354.12x = 91,567.76 × 37,673.54
  4. Step 4: Simplify right side
    66,354.12x = 3,449,681,669.07
  5. Step 5: Solve for x
    x = 3,449,681,669.07/66,354.12
  6. Step 6: Final answer
    x = 51,988.96

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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.