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Finding the Fourth Proportional to 35,989.88, 49,652.64 and 20,874.06

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Solution

The fourth proportional to 35,989.88, 49,652.64 and 20,874.06 is: 28,798.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,989.88 : 49,652.64 = 20,874.06 : x
  2. Step 2: Convert to fraction form
    35,989.88/49,652.64 = 20,874.06/x
  3. Step 3: Cross multiply
    35,989.88x = 49,652.64 × 20,874.06
  4. Step 4: Simplify right side
    35,989.88x = 1,036,452,186.52
  5. Step 5: Solve for x
    x = 1,036,452,186.52/35,989.88
  6. Step 6: Final answer
    x = 28,798.44

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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.