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Finding the Fourth Proportional to 35,704.78, 49,272.51 and 20,597.20

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Solution

The fourth proportional to 35,704.78, 49,272.51 and 20,597.20 is: 28,424.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,704.78 : 49,272.51 = 20,597.20 : x
  2. Step 2: Convert to fraction form
    35,704.78/49,272.51 = 20,597.20/x
  3. Step 3: Cross multiply
    35,704.78x = 49,272.51 × 20,597.20
  4. Step 4: Simplify right side
    35,704.78x = 1,014,875,742.97
  5. Step 5: Solve for x
    x = 1,014,875,742.97/35,704.78
  6. Step 6: Final answer
    x = 28,424.09

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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.