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Finding the Fourth Proportional to 43,858.86, 65,788.88 and 14,276.84

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Solution

The fourth proportional to 43,858.86, 65,788.88 and 14,276.84 is: 21,415.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,858.86 : 65,788.88 = 14,276.84 : x
  2. Step 2: Convert to fraction form
    43,858.86/65,788.88 = 14,276.84/x
  3. Step 3: Cross multiply
    43,858.86x = 65,788.88 × 14,276.84
  4. Step 4: Simplify right side
    43,858.86x = 939,257,313.54
  5. Step 5: Solve for x
    x = 939,257,313.54/43,858.86
  6. Step 6: Final answer
    x = 21,415.45

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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.