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Finding the Fourth Proportional to 51,168.01, 70,610.79 and 28,506.97

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Solution

The fourth proportional to 51,168.01, 70,610.79 and 28,506.97 is: 39,339.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,168.01 : 70,610.79 = 28,506.97 : x
  2. Step 2: Convert to fraction form
    51,168.01/70,610.79 = 28,506.97/x
  3. Step 3: Cross multiply
    51,168.01x = 70,610.79 × 28,506.97
  4. Step 4: Simplify right side
    51,168.01x = 2,012,899,672.21
  5. Step 5: Solve for x
    x = 2,012,899,672.21/51,168.01
  6. Step 6: Final answer
    x = 39,339.03

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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.