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Finding the Fourth Proportional to 18,037.80, 24,891.98 and 9,971.42

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Solution

The fourth proportional to 18,037.80, 24,891.98 and 9,971.42 is: 13,760.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,037.80 : 24,891.98 = 9,971.42 : x
  2. Step 2: Convert to fraction form
    18,037.80/24,891.98 = 9,971.42/x
  3. Step 3: Cross multiply
    18,037.80x = 24,891.98 × 9,971.42
  4. Step 4: Simplify right side
    18,037.80x = 248,208,212.89
  5. Step 5: Solve for x
    x = 248,208,212.89/18,037.80
  6. Step 6: Final answer
    x = 13,760.45

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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.