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Finding the Fourth Proportional to 48,080.98, 72,121.74 and 13,020.94

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Solution

The fourth proportional to 48,080.98, 72,121.74 and 13,020.94 is: 19,531.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,080.98 : 72,121.74 = 13,020.94 : x
  2. Step 2: Convert to fraction form
    48,080.98/72,121.74 = 13,020.94/x
  3. Step 3: Cross multiply
    48,080.98x = 72,121.74 × 13,020.94
  4. Step 4: Simplify right side
    48,080.98x = 939,092,849.24
  5. Step 5: Solve for x
    x = 939,092,849.24/48,080.98
  6. Step 6: Final answer
    x = 19,531.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.