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Finding the Fourth Proportional to 66,212.80, 91,284.22 and 44,955.16

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Solution

The fourth proportional to 66,212.80, 91,284.22 and 44,955.16 is: 61,977.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,212.80 : 91,284.22 = 44,955.16 : x
  2. Step 2: Convert to fraction form
    66,212.80/91,284.22 = 44,955.16/x
  3. Step 3: Cross multiply
    66,212.80x = 91,284.22 × 44,955.16
  4. Step 4: Simplify right side
    66,212.80x = 4,103,696,715.58
  5. Step 5: Solve for x
    x = 4,103,696,715.58/66,212.80
  6. Step 6: Final answer
    x = 61,977.39

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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.