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Finding the Fourth Proportional to 51,174.01, 70,619.07 and 28,512.91

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Solution

The fourth proportional to 51,174.01, 70,619.07 and 28,512.91 is: 39,347.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,174.01 : 70,619.07 = 28,512.91 : x
  2. Step 2: Convert to fraction form
    51,174.01/70,619.07 = 28,512.91/x
  3. Step 3: Cross multiply
    51,174.01x = 70,619.07 × 28,512.91
  4. Step 4: Simplify right side
    51,174.01x = 2,013,555,187.19
  5. Step 5: Solve for x
    x = 2,013,555,187.19/51,174.01
  6. Step 6: Final answer
    x = 39,347.22

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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.