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Finding the Fourth Proportional to 15,280.40, 22,917.40 and 7,494.80

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Solution

The fourth proportional to 15,280.40, 22,917.40 and 7,494.80 is: 11,240.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280.40 : 22,917.40 = 7,494.80 : x
  2. Step 2: Convert to fraction form
    15,280.40/22,917.40 = 7,494.80/x
  3. Step 3: Cross multiply
    15,280.40x = 22,917.40 × 7,494.80
  4. Step 4: Simplify right side
    15,280.40x = 171,761,329.52
  5. Step 5: Solve for x
    x = 171,761,329.52/15,280.40
  6. Step 6: Final answer
    x = 11,240.63

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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.