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Finding the Fourth Proportional to 8,798.88, 13,203.28 and 3,608.40

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Solution

The fourth proportional to 8,798.88, 13,203.28 and 3,608.40 is: 5,414.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.88 : 13,203.28 = 3,608.40 : x
  2. Step 2: Convert to fraction form
    8,798.88/13,203.28 = 3,608.40/x
  3. Step 3: Cross multiply
    8,798.88x = 13,203.28 × 3,608.40
  4. Step 4: Simplify right side
    8,798.88x = 47,642,715.55
  5. Step 5: Solve for x
    x = 47,642,715.55/8,798.88
  6. Step 6: Final answer
    x = 5,414.63

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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.