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Finding the Fourth Proportional to 35,244, 48,642.48 and 20,348.64

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Solution

The fourth proportional to 35,244, 48,642.48 and 20,348.64 is: 28,084.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,244 : 48,642.48 = 20,348.64 : x
  2. Step 2: Convert to fraction form
    35,244/48,642.48 = 20,348.64/x
  3. Step 3: Cross multiply
    35,244x = 48,642.48 × 20,348.64
  4. Step 4: Simplify right side
    35,244x = 989,808,314.23
  5. Step 5: Solve for x
    x = 989,808,314.23/35,244
  6. Step 6: Final answer
    x = 28,084.45

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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.