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Finding the Fourth Proportional to 8,797.58, 12,140.80 and 4,819.07

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Solution

The fourth proportional to 8,797.58, 12,140.80 and 4,819.07 is: 6,650.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.58 : 12,140.80 = 4,819.07 : x
  2. Step 2: Convert to fraction form
    8,797.58/12,140.80 = 4,819.07/x
  3. Step 3: Cross multiply
    8,797.58x = 12,140.80 × 4,819.07
  4. Step 4: Simplify right side
    8,797.58x = 58,507,365.06
  5. Step 5: Solve for x
    x = 58,507,365.06/8,797.58
  6. Step 6: Final answer
    x = 6,650.39

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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.