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Finding the Fourth Proportional to 35,012.88, 48,319.49 and 19,704.21

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Solution

The fourth proportional to 35,012.88, 48,319.49 and 19,704.21 is: 27,192.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,012.88 : 48,319.49 = 19,704.21 : x
  2. Step 2: Convert to fraction form
    35,012.88/48,319.49 = 19,704.21/x
  3. Step 3: Cross multiply
    35,012.88x = 48,319.49 × 19,704.21
  4. Step 4: Simplify right side
    35,012.88x = 952,097,407.08
  5. Step 5: Solve for x
    x = 952,097,407.08/35,012.88
  6. Step 6: Final answer
    x = 27,192.77

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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.