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Finding the Fourth Proportional to 66,051.32, 91,128.60 and 37,736.96

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Solution

The fourth proportional to 66,051.32, 91,128.60 and 37,736.96 is: 52,064.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,051.32 : 91,128.60 = 37,736.96 : x
  2. Step 2: Convert to fraction form
    66,051.32/91,128.60 = 37,736.96/x
  3. Step 3: Cross multiply
    66,051.32x = 91,128.60 × 37,736.96
  4. Step 4: Simplify right side
    66,051.32x = 3,438,916,333.06
  5. Step 5: Solve for x
    x = 3,438,916,333.06/66,051.32
  6. Step 6: Final answer
    x = 52,064.31

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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.