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Finding the Fourth Proportional to 66,344.70, 91,554.74 and 37,664.10

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Solution

The fourth proportional to 66,344.70, 91,554.74 and 37,664.10 is: 51,975.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,344.70 : 91,554.74 = 37,664.10 : x
  2. Step 2: Convert to fraction form
    66,344.70/91,554.74 = 37,664.10/x
  3. Step 3: Cross multiply
    66,344.70x = 91,554.74 × 37,664.10
  4. Step 4: Simplify right side
    66,344.70x = 3,448,326,882.83
  5. Step 5: Solve for x
    x = 3,448,326,882.83/66,344.70
  6. Step 6: Final answer
    x = 51,975.92

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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.