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Finding the Fourth Proportional to 8,858.88, 12,225.60 and 5,323.68

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Solution

The fourth proportional to 8,858.88, 12,225.60 and 5,323.68 is: 7,346.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.88 : 12,225.60 = 5,323.68 : x
  2. Step 2: Convert to fraction form
    8,858.88/12,225.60 = 5,323.68/x
  3. Step 3: Cross multiply
    8,858.88x = 12,225.60 × 5,323.68
  4. Step 4: Simplify right side
    8,858.88x = 65,085,182.21
  5. Step 5: Solve for x
    x = 65,085,182.21/8,858.88
  6. Step 6: Final answer
    x = 7,346.89

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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.