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Finding the Fourth Proportional to 9,919.68, 14,866.80 and 4,369.44

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Solution

The fourth proportional to 9,919.68, 14,866.80 and 4,369.44 is: 6,548.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.68 : 14,866.80 = 4,369.44 : x
  2. Step 2: Convert to fraction form
    9,919.68/14,866.80 = 4,369.44/x
  3. Step 3: Cross multiply
    9,919.68x = 14,866.80 × 4,369.44
  4. Step 4: Simplify right side
    9,919.68x = 64,959,590.59
  5. Step 5: Solve for x
    x = 64,959,590.59/9,919.68
  6. Step 6: Final answer
    x = 6,548.56

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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.