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Finding the Fourth Proportional to 61,718.64, 85,173.30 and 37,858.44

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Solution

The fourth proportional to 61,718.64, 85,173.30 and 37,858.44 is: 52,245.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,718.64 : 85,173.30 = 37,858.44 : x
  2. Step 2: Convert to fraction form
    61,718.64/85,173.30 = 37,858.44/x
  3. Step 3: Cross multiply
    61,718.64x = 85,173.30 × 37,858.44
  4. Step 4: Simplify right side
    61,718.64x = 3,224,528,267.65
  5. Step 5: Solve for x
    x = 3,224,528,267.65/61,718.64
  6. Step 6: Final answer
    x = 52,245.61

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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.