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Finding the Fourth Proportional to 14,173.59, 21,259.90 and 7,612.59

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Solution

The fourth proportional to 14,173.59, 21,259.90 and 7,612.59 is: 11,418.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,173.59 : 21,259.90 = 7,612.59 : x
  2. Step 2: Convert to fraction form
    14,173.59/21,259.90 = 7,612.59/x
  3. Step 3: Cross multiply
    14,173.59x = 21,259.90 × 7,612.59
  4. Step 4: Simplify right side
    14,173.59x = 161,842,902.14
  5. Step 5: Solve for x
    x = 161,842,902.14/14,173.59
  6. Step 6: Final answer
    x = 11,418.62

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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.