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Finding the Fourth Proportional to 14,659.12, 21,978.96 and 4,794.94

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Solution

The fourth proportional to 14,659.12, 21,978.96 and 4,794.94 is: 7,189.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,659.12 : 21,978.96 = 4,794.94 : x
  2. Step 2: Convert to fraction form
    14,659.12/21,978.96 = 4,794.94/x
  3. Step 3: Cross multiply
    14,659.12x = 21,978.96 × 4,794.94
  4. Step 4: Simplify right side
    14,659.12x = 105,387,794.46
  5. Step 5: Solve for x
    x = 105,387,794.46/14,659.12
  6. Step 6: Final answer
    x = 7,189.23

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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.