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Finding the Fourth Proportional to 37,608.64, 51,899.04 and 20,841.28

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Solution

The fourth proportional to 37,608.64, 51,899.04 and 20,841.28 is: 28,760.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,608.64 : 51,899.04 = 20,841.28 : x
  2. Step 2: Convert to fraction form
    37,608.64/51,899.04 = 20,841.28/x
  3. Step 3: Cross multiply
    37,608.64x = 51,899.04 × 20,841.28
  4. Step 4: Simplify right side
    37,608.64x = 1,081,642,424.37
  5. Step 5: Solve for x
    x = 1,081,642,424.37/37,608.64
  6. Step 6: Final answer
    x = 28,760.48

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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.