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Finding the Fourth Proportional to 66,335.70, 91,387.58 and 46,157.88

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Solution

The fourth proportional to 66,335.70, 91,387.58 and 46,157.88 is: 63,589.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,335.70 : 91,387.58 = 46,157.88 : x
  2. Step 2: Convert to fraction form
    66,335.70/91,387.58 = 46,157.88/x
  3. Step 3: Cross multiply
    66,335.70x = 91,387.58 × 46,157.88
  4. Step 4: Simplify right side
    66,335.70x = 4,218,256,720.34
  5. Step 5: Solve for x
    x = 4,218,256,720.34/66,335.70
  6. Step 6: Final answer
    x = 63,589.54

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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.