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Finding the Fourth Proportional to 66,009.40, 91,084.58 and 37,716.92

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Solution

The fourth proportional to 66,009.40, 91,084.58 and 37,716.92 is: 52,044.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,009.40 : 91,084.58 = 37,716.92 : x
  2. Step 2: Convert to fraction form
    66,009.40/91,084.58 = 37,716.92/x
  3. Step 3: Cross multiply
    66,009.40x = 91,084.58 × 37,716.92
  4. Step 4: Simplify right side
    66,009.40x = 3,435,429,817.09
  5. Step 5: Solve for x
    x = 3,435,429,817.09/66,009.40
  6. Step 6: Final answer
    x = 52,044.55

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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.