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Finding the Fourth Proportional to 66,590.26, 91,897.29 and 38,295.94

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Solution

The fourth proportional to 66,590.26, 91,897.29 and 38,295.94 is: 52,849.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,590.26 : 91,897.29 = 38,295.94 : x
  2. Step 2: Convert to fraction form
    66,590.26/91,897.29 = 38,295.94/x
  3. Step 3: Cross multiply
    66,590.26x = 91,897.29 × 38,295.94
  4. Step 4: Simplify right side
    66,590.26x = 3,519,293,104.00
  5. Step 5: Solve for x
    x = 3,519,293,104.00/66,590.26
  6. Step 6: Final answer
    x = 52,849.97

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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.