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Finding the Fourth Proportional to 66,113.58, 91,236.24 and 35,898.32

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Solution

The fourth proportional to 66,113.58, 91,236.24 and 35,898.32 is: 49,539.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,113.58 : 91,236.24 = 35,898.32 : x
  2. Step 2: Convert to fraction form
    66,113.58/91,236.24 = 35,898.32/x
  3. Step 3: Cross multiply
    66,113.58x = 91,236.24 × 35,898.32
  4. Step 4: Simplify right side
    66,113.58x = 3,275,227,739.12
  5. Step 5: Solve for x
    x = 3,275,227,739.12/66,113.58
  6. Step 6: Final answer
    x = 49,539.41

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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.