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Finding the Fourth Proportional to 66,214.80, 91,286.98 and 44,957.16

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Solution

The fourth proportional to 66,214.80, 91,286.98 and 44,957.16 is: 61,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,214.80 : 91,286.98 = 44,957.16 : x
  2. Step 2: Convert to fraction form
    66,214.80/91,286.98 = 44,957.16/x
  3. Step 3: Cross multiply
    66,214.80x = 91,286.98 × 44,957.16
  4. Step 4: Simplify right side
    66,214.80x = 4,104,003,365.78
  5. Step 5: Solve for x
    x = 4,104,003,365.78/66,214.80
  6. Step 6: Final answer
    x = 61,980.15

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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.