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Finding the Fourth Proportional to 66,907.88, 92,326.20 and 38,622.68

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Solution

The fourth proportional to 66,907.88, 92,326.20 and 38,622.68 is: 53,295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,907.88 : 92,326.20 = 38,622.68 : x
  2. Step 2: Convert to fraction form
    66,907.88/92,326.20 = 38,622.68/x
  3. Step 3: Cross multiply
    66,907.88x = 92,326.20 × 38,622.68
  4. Step 4: Simplify right side
    66,907.88x = 3,565,884,816.59
  5. Step 5: Solve for x
    x = 3,565,884,816.59/66,907.88
  6. Step 6: Final answer
    x = 53,295.44

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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.