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Finding the Fourth Proportional to 18,164.00, 25,061.90 and 10,605.99

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Solution

The fourth proportional to 18,164.00, 25,061.90 and 10,605.99 is: 14,633.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164.00 : 25,061.90 = 10,605.99 : x
  2. Step 2: Convert to fraction form
    18,164.00/25,061.90 = 10,605.99/x
  3. Step 3: Cross multiply
    18,164.00x = 25,061.90 × 10,605.99
  4. Step 4: Simplify right side
    18,164.00x = 265,806,207.75
  5. Step 5: Solve for x
    x = 265,806,207.75/18,164.00
  6. Step 6: Final answer
    x = 14,633.69

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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.