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Finding the Fourth Proportional to 66,238.38, 91,409.63 and 36,024.39

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Solution

The fourth proportional to 66,238.38, 91,409.63 and 36,024.39 is: 49,714.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,238.38 : 91,409.63 = 36,024.39 : x
  2. Step 2: Convert to fraction form
    66,238.38/91,409.63 = 36,024.39/x
  3. Step 3: Cross multiply
    66,238.38x = 91,409.63 × 36,024.39
  4. Step 4: Simplify right side
    66,238.38x = 3,292,975,980.75
  5. Step 5: Solve for x
    x = 3,292,975,980.75/66,238.38
  6. Step 6: Final answer
    x = 49,714.02

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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.