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Finding the Fourth Proportional to 14,178.93, 19,566.93 and 7,891.32

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Solution

The fourth proportional to 14,178.93, 19,566.93 and 7,891.32 is: 10,890.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.93 : 19,566.93 = 7,891.32 : x
  2. Step 2: Convert to fraction form
    14,178.93/19,566.93 = 7,891.32/x
  3. Step 3: Cross multiply
    14,178.93x = 19,566.93 × 7,891.32
  4. Step 4: Simplify right side
    14,178.93x = 154,408,906.05
  5. Step 5: Solve for x
    x = 154,408,906.05/14,178.93
  6. Step 6: Final answer
    x = 10,890.03

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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.