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Finding the Fourth Proportional to 14,415.44, 21,616.44 and 7,488.08

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Solution

The fourth proportional to 14,415.44, 21,616.44 and 7,488.08 is: 11,228.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,415.44 : 21,616.44 = 7,488.08 : x
  2. Step 2: Convert to fraction form
    14,415.44/21,616.44 = 7,488.08/x
  3. Step 3: Cross multiply
    14,415.44x = 21,616.44 × 7,488.08
  4. Step 4: Simplify right side
    14,415.44x = 161,865,632.04
  5. Step 5: Solve for x
    x = 161,865,632.04/14,415.44
  6. Step 6: Final answer
    x = 11,228.63

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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.