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Finding the Fourth Proportional to 8,992.28, 12,415.74 and 7,504.04

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Solution

The fourth proportional to 8,992.28, 12,415.74 and 7,504.04 is: 10,360.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.28 : 12,415.74 = 7,504.04 : x
  2. Step 2: Convert to fraction form
    8,992.28/12,415.74 = 7,504.04/x
  3. Step 3: Cross multiply
    8,992.28x = 12,415.74 × 7,504.04
  4. Step 4: Simplify right side
    8,992.28x = 93,168,209.59
  5. Step 5: Solve for x
    x = 93,168,209.59/8,992.28
  6. Step 6: Final answer
    x = 10,360.91

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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.