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Finding the Fourth Proportional to 11,925.98, 17,888.98 and 6,731.86

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Solution

The fourth proportional to 11,925.98, 17,888.98 and 6,731.86 is: 10,097.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.98 : 17,888.98 = 6,731.86 : x
  2. Step 2: Convert to fraction form
    11,925.98/17,888.98 = 6,731.86/x
  3. Step 3: Cross multiply
    11,925.98x = 17,888.98 × 6,731.86
  4. Step 4: Simplify right side
    11,925.98x = 120,426,074.58
  5. Step 5: Solve for x
    x = 120,426,074.58/11,925.98
  6. Step 6: Final answer
    x = 10,097.79

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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.