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Finding the Fourth Proportional to 7,315.52, 10,092.88 and 4,169.44

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Solution

The fourth proportional to 7,315.52, 10,092.88 and 4,169.44 is: 5,752.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,315.52 : 10,092.88 = 4,169.44 : x
  2. Step 2: Convert to fraction form
    7,315.52/10,092.88 = 4,169.44/x
  3. Step 3: Cross multiply
    7,315.52x = 10,092.88 × 4,169.44
  4. Step 4: Simplify right side
    7,315.52x = 42,081,657.59
  5. Step 5: Solve for x
    x = 42,081,657.59/7,315.52
  6. Step 6: Final answer
    x = 5,752.38

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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.