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Finding the Fourth Proportional to 63,573.40, 87,731.63 and 35,279.09

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Solution

The fourth proportional to 63,573.40, 87,731.63 and 35,279.09 is: 48,685.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,573.40 : 87,731.63 = 35,279.09 : x
  2. Step 2: Convert to fraction form
    63,573.40/87,731.63 = 35,279.09/x
  3. Step 3: Cross multiply
    63,573.40x = 87,731.63 × 35,279.09
  4. Step 4: Simplify right side
    63,573.40x = 3,095,091,720.16
  5. Step 5: Solve for x
    x = 3,095,091,720.16/63,573.40
  6. Step 6: Final answer
    x = 48,685.33

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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.