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Finding the Fourth Proportional to 8,991,645.60, 13,482,802.80 and 3,308,944.80

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Solution

The fourth proportional to 8,991,645.60, 13,482,802.80 and 3,308,944.80 is: 4,961,700.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991,645.60 : 13,482,802.80 = 3,308,944.80 : x
  2. Step 2: Convert to fraction form
    8,991,645.60/13,482,802.80 = 3,308,944.80/x
  3. Step 3: Cross multiply
    8,991,645.60x = 13,482,802.80 × 3,308,944.80
  4. Step 4: Simplify right side
    8,991,645.60x = 44,613,850,214,485.44
  5. Step 5: Solve for x
    x = 44,613,850,214,485.44/8,991,645.60
  6. Step 6: Final answer
    x = 4,961,700.25

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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.