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Finding the Fourth Proportional to 66,949, 92,389.64 and 37,146.76

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Solution

The fourth proportional to 66,949, 92,389.64 and 37,146.76 is: 51,262.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,949 : 92,389.64 = 37,146.76 : x
  2. Step 2: Convert to fraction form
    66,949/92,389.64 = 37,146.76/x
  3. Step 3: Cross multiply
    66,949x = 92,389.64 × 37,146.76
  4. Step 4: Simplify right side
    66,949x = 3,431,975,783.57
  5. Step 5: Solve for x
    x = 3,431,975,783.57/66,949
  6. Step 6: Final answer
    x = 51,262.54

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Half scale
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Double scale
Find fourth proportional to 66,950, 92,391.02 and 37,147.76
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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.