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Finding the Fourth Proportional to 66,590.66, 91,897.90 and 38,296.37

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Solution

The fourth proportional to 66,590.66, 91,897.90 and 38,296.37 is: 52,850.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,590.66 : 91,897.90 = 38,296.37 : x
  2. Step 2: Convert to fraction form
    66,590.66/91,897.90 = 38,296.37/x
  3. Step 3: Cross multiply
    66,590.66x = 91,897.90 × 38,296.37
  4. Step 4: Simplify right side
    66,590.66x = 3,519,355,425.39
  5. Step 5: Solve for x
    x = 3,519,355,425.39/66,590.66
  6. Step 6: Final answer
    x = 52,850.59

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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.