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Finding the Fourth Proportional to 66,106.94, 91,227.87 and 35,892.45

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Solution

The fourth proportional to 66,106.94, 91,227.87 and 35,892.45 is: 49,531.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,106.94 : 91,227.87 = 35,892.45 : x
  2. Step 2: Convert to fraction form
    66,106.94/91,227.87 = 35,892.45/x
  3. Step 3: Cross multiply
    66,106.94x = 91,227.87 × 35,892.45
  4. Step 4: Simplify right side
    66,106.94x = 3,274,391,762.58
  5. Step 5: Solve for x
    x = 3,274,391,762.58/66,106.94
  6. Step 6: Final answer
    x = 49,531.74

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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.